1.They can't be quarreling now,___they 答案是are,为什么不能填can?我也见过

1.Don't be so s____ .can't you understand they are fooling y 为什么 I think.tom can't swim now.合并为一句,的答案是为什么? The flowers can't have been watered often enough,___they are Tom is one of the people who ______ they are now.空为什么不能填from The children are so young that they can’t look after t（ ）_.填 ___they are most interested in is ____they can produce more you are kidding.he can't be here now .he's gone to america,_ They are quarreling ________ with each other. 1.The flowers can't have been watered often enough,___they a Listen!His family must be quarreling,【aren't they?】,此句中【aren can be 我知道can't be 一定不是 是must be 一定是的否定形式 "That's must be a mistike" "No,it can't be a mistike."中为什么不能