Question

Thank you for the trouble you _________ to help us.

A. put BtakeC. make D. do
为什么

Answer 1

B take trouble to do sth:不辞辛苦做某事的意思（这里根据句子意思推断是帮助的意思，故而选B,其它，make,do都是制造麻烦的意思

Answer 2

选B, take the trouble,意思是不厌其烦，不辞劳苦。

Answer 3

应该是 take the trouble to do sth 联合整个句子来看you took 作 the trouble的后置定语 答案是B