Question

【题目】__________，I think, and you will settle the problem.

A. So long as you keep up your spirits

B. If you make your effort

C. Making great efforts

D. A bit more effort

Answer 1

【答案】D

【解析】句意：多做出一点努力，我想，你会解决这个问题的。and为并列连词，后分句为一般将来时，前分句为祈使句或名词短语。