The fish smells/smell bad

The fish smells/smell bad The fish smells bad.怎么译 The egg smells bad smell 为什么加S? The fish smells u_______________,it has gone bad. the fish smells -------- the fish smells（ ）. The fish smells bad!It must be out of date!中的bad为什么不用badly Don't eat the fish.It smells ___.A.hard B.badly C.bad The fish smells bad and is hardly ()(eat的一种形式). fish smell more bad than anything else The fish smell(） A.bad B.worse C.worst D.badly The fish smells not good 改错