Theoldmanlookedatthepicture,hefeltasthoughhe

問題詳情：

The old man looked at the picture, he felt as though he ______ to time 20 years ago.

   A. had gone back     B. went back            C back             D. should go back

【回答】

A

知識點：過去完成時及其被動式

題型：選擇題