—Whatcausedthepartytobeputoff? —

問題詳情：

 —What caused the party to be put off?

 —__________the invitations.

A. Tom delayed sending                        B. Tom’s delaying sending

C. Tom delaying to send                D. Tom delayed to send

【回答】

B

知識點：非謂語動詞

題型：選擇題