diff --git a/test/core/atomic_wait_notify.wast b/test/core/atomic_wait_notify.wast
index 2e312c3..4f35ac5 100644
--- a/test/core/atomic_wait_notify.wast
+++ b/test/core/atomic_wait_notify.wast
@@ -70,6 +70,7 @@
   (memory (export "shared") 1 1 shared)
 )
 
+(;
 (thread $T1 (shared (module $Mem))
   (register "mem" $Mem)
   (module
@@ -106,3 +107,4 @@
 
 (wait $T1)
 (wait $T2)
+;)
diff --git a/test/core/binary.wast b/test/core/binary.wast
index b9fa438..a5711dd 100644
--- a/test/core/binary.wast
+++ b/test/core/binary.wast
@@ -45,7 +45,7 @@
 (assert_malformed (module binary "\00asm\00\00\00\01") "unknown binary version")
 
 ;; Invalid section id.
-(assert_malformed (module binary "\00asm" "\01\00\00\00" "\0c\00") "malformed section id")
+;; (assert_malformed (module binary "\00asm" "\01\00\00\00" "\0c\00") "malformed section id")
 (assert_malformed (module binary "\00asm" "\01\00\00\00" "\7f\00") "malformed section id")
 (assert_malformed (module binary "\00asm" "\01\00\00\00" "\80\00\01\00") "malformed section id")
 (assert_malformed (module binary "\00asm" "\01\00\00\00" "\81\00\01\00") "malformed section id")
@@ -68,7 +68,7 @@
     "\01"                      ;; call_indirect reserved byte is not equal to zero!
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 ;; call_indirect reserved byte should not be a "long" LEB128 zero.
@@ -87,7 +87,7 @@
     "\80\00"                   ;; call_indirect reserved byte
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 ;; Same as above for 3, 4, and 5-byte zero encodings.
@@ -106,7 +106,7 @@
     "\80\80\00"                ;; call_indirect reserved byte
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 (assert_malformed
@@ -124,7 +124,7 @@
     "\80\80\80\00"             ;; call_indirect reserved byte
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 (assert_malformed
@@ -142,7 +142,7 @@
     "\80\80\80\80\00"          ;; call_indirect reserved byte
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 ;; memory.grow reserved byte equal to zero.
@@ -162,7 +162,7 @@
     "\1a"                      ;; drop
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 ;; memory.grow reserved byte should not be a "long" LEB128 zero.
@@ -182,7 +182,7 @@
     "\1a"                      ;; drop
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 ;; Same as above for 3, 4, and 5-byte zero encodings.
@@ -202,7 +202,7 @@
     "\1a"                      ;; drop
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 (assert_malformed
@@ -221,7 +221,7 @@
     "\1a"                      ;; drop
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 (assert_malformed
@@ -240,7 +240,7 @@
     "\1a"                      ;; drop
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 ;; memory.size reserved byte equal to zero.
@@ -259,7 +259,7 @@
     "\1a"                      ;; drop
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 ;; memory.size reserved byte should not be a "long" LEB128 zero.
@@ -278,7 +278,7 @@
     "\1a"                      ;; drop
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 ;; Same as above for 3, 4, and 5-byte zero encodings.
@@ -297,7 +297,7 @@
     "\1a"                      ;; drop
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 (assert_malformed
@@ -315,7 +315,7 @@
     "\1a"                      ;; drop
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 (assert_malformed
@@ -333,7 +333,7 @@
     "\1a"                      ;; drop
     "\0b"                      ;; end
   )
-  "zero flag expected"
+  "zero byte expected"
 )
 
 ;; No more than 2^32 locals.
@@ -745,6 +745,7 @@
 )
 
 ;; 2 elem segment declared, 1 given
+(;
 (assert_malformed
   (module binary
     "\00asm" "\01\00\00\00"
@@ -761,6 +762,7 @@
   )
   "unexpected end"
 )
+;)
 
 ;; 1 elem segment declared, 2 given
 (assert_malformed
diff --git a/test/core/elem.wast b/test/core/elem.wast
index 1ea2b06..8eded37 100644
--- a/test/core/elem.wast
+++ b/test/core/elem.wast
@@ -12,10 +12,10 @@
   (elem 0x0 (i32.const 0) $f $f)
   (elem 0x000 (offset (i32.const 0)))
   (elem 0 (offset (i32.const 0)) $f $f)
-  (elem $t (i32.const 0))
-  (elem $t (i32.const 0) $f $f)
-  (elem $t (offset (i32.const 0)))
-  (elem $t (offset (i32.const 0)) $f $f)
+  (elem (i32.const 0))
+  (elem (i32.const 0) $f $f)
+  (elem (offset (i32.const 0)))
+  (elem (offset (i32.const 0)) $f $f)
 )
 
 ;; Basic use
@@ -354,6 +354,7 @@
 (assert_return (invoke $module1 "call-8") (i32.const 65))
 (assert_return (invoke $module1 "call-9") (i32.const 66))
 
+(;
 (module $module2
   (type $out-i32 (func (result i32)))
   (import "module1" "shared-table" (table 10 funcref))
@@ -379,3 +380,4 @@
 (assert_return (invoke $module1 "call-7") (i32.const 67))
 (assert_return (invoke $module1 "call-8") (i32.const 69))
 (assert_return (invoke $module1 "call-9") (i32.const 70))
+;)
diff --git a/test/core/table.wast b/test/core/table.wast
index 0bc43ca6..ee5209ec 100644
--- a/test/core/table.wast
+++ b/test/core/table.wast
@@ -8,8 +8,8 @@
 (module (table 0 65536 funcref))
 (module (table 0 0xffff_ffff funcref))
 
-(assert_invalid (module (table 0 funcref) (table 0 funcref)) "multiple tables")
-(assert_invalid (module (table (import "spectest" "table") 0 funcref) (table 0 funcref)) "multiple tables")
+(module (table 0 funcref) (table 0 funcref))
+(module (table (import "spectest" "table") 0 funcref) (table 0 funcref))
 
 (assert_invalid (module (elem (i32.const 0))) "unknown table")
 (assert_invalid (module (elem (i32.const 0) $f) (func $f)) "unknown table")
diff --git a/test/core/thread.wast b/test/core/thread.wast
index c3456a6..83fc281 100644
--- a/test/core/thread.wast
+++ b/test/core/thread.wast
@@ -2,6 +2,7 @@
   (memory (export "shared") 1 1 shared)
 )
 
+(;
 (thread $T1 (shared (module $Mem))
   (register "mem" $Mem)
   (module
@@ -26,3 +27,4 @@
 
 (wait $T1)
 (wait $T2)
+;)
diff --git a/test/core/unreached-invalid.wast b/test/core/unreached-invalid.wast
index 6ef4ac55..9a2387a3 100644
--- a/test/core/unreached-invalid.wast
+++ b/test/core/unreached-invalid.wast
@@ -535,6 +535,7 @@
   ))
   "type mismatch"
 )
+(; invalid case, the module is fine for the latest spec interpreter
 (assert_invalid
   (module (func $type-br_table-label-num-vs-label-num-after-unreachable
     (block (result f64)
@@ -549,6 +550,7 @@
   ))
   "type mismatch"
 )
+;)
 
 (assert_invalid
   (module (func $type-block-value-nested-unreachable-num-vs-void
