Question

【题目】They spend as many hours as they have____ their English

A. improving B. improved C. improves D. to improve

Answer 1

【答案】A

【解析】句意：他们花了他们尽可能多的时间来提高英语水平。考查动词形式辨析题。spend some time doing sth.花费时间做某事，固定短语；根据句意结构，可知选A。