—I’msureAndrewwillwinthefirstprizeinthefinal.—Ithinkso....

問題詳情：

—I’m sure Andrew will win the first prize in the final.

—I think so. He ______ for it for months.

A. is preparing              B. was preparing           C. had been preparing    D. has been preparing

【回答】

D

知識點：動詞時態與語態

題型：選擇題