______,I think,and the problem could be settled soon.
1个回答

选D.比较接近口语

A.So long as you keep spirits

B.If you double your efforts

都是引导条件句的,

因为有了and,所以不可能是从句

Making great efforts 是非谓语,就算没有and,这样的表达也不对.现在有

and,更不可能了.

根据排除法选D

A bit more efforts 这里是祈使句,“只要再多一点努力”

and这里是并列连词,用来连接另一句句子the problem could be settled soon