Question

【题目】Not until recently________the development of tourist-related activities in the rural areas.

A.they had encouraged B.had they encouraged

C.did they encourage D.they encouraged

Answer 1

【答案】C

【解析】考查时态和倒装。根据时间状语＂recently＂可知本句应用一般过去时。Not until+状语位于句首,句子采用部分倒装的语序,因此本题选择C。