—Isyourmotherstillateacher?—

問題詳情：

 — Is your mother still a teacher?

— ______.

A. Yes, she was         B. She didn’t use to

C. No, but she used to    D. No, but she used to be

【回答】

D。used to be表示“曾經是……”，與現在有對比之意。to後的be要保留。

知識點：交際用語

題型：選擇題