--What did you do during your Summer Classes?--I spent my holiday______English in Summer Classes..A.improving B.improves C.to improve
问题描述：
--What did you do during your Summer Classes?--I spent my holiday______English in Summer Classes..
A.improving B.improves C.to improve
答
牢记这个搭配: spend...on sth./(in) doing sth. 这道题考查了（in）doing这个搭配，故正确答案是A。
答
为你解答。
--What did you do during your Summer Classes?
--I spent my holiday （A.improving） English in Summer Classes..
你在暑期班做了什么？我用假期时间来提高英语。
解释：spend time doing，花时间做。spend之后的动词要用doing的形式。
答
选c.表目的.