Question

【题目】It's hard work, but we'll keep ________ until we make it.
A.try
B.tried
C.trying
D.to try

Answer 1

【答案】C
【解析】句意是：这是艰苦的工作，但是我们要一直努力直到做成。keep doing sth.意为“一直做某事”，为固定搭配。故选C。