问题
选择题
_____ , I think, and the problem could be settled.
A．If you make your efforts
B．So long as you keep your spirits
C．A bit more efforts
D．making great efforts
答案
答案：C
这题考查句型：祈使句或名词，and/or+简单句，句意是：我想再多些努力问题就被解决了。选C。