Question

   , I think, and the problem could be settled.

A．If you don’t doubt your efforts	B．So long as you keep up your spirits
C．Making great efforts	D．A bit more efforts

Answer 1

D

考查祈使句。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，选D。