The flowers were so lovely that theyin no time.A. sold outB. had been sold outC. were sold

问题补充：

The flowers were so lovely that theyin no time.

A. sold out

B. had been sold out

C. were sold out

D. would sell out

答案：

A. sold out

B. had been sold out

(答案→)C. were sold out

D. would sell out

解析：考查时态语态，句意：这些花是如此漂亮以至于很快就卖完了。说明花是过去被卖完了，用过去时的被动。选C。