the rain falling so frequently ,it becomes more and more difficult to carry on
问题描述:
the rain falling so frequently ,it becomes more and more difficult to carry on
_______ the rain falling so frequently ,it becomes more and more difficult to carry on the rescue work.
A.since B.with C.as D.for\
应该选B.为什么不是A?众所周知的原因“由于雨下的很频繁,营救工作很难进行”
答
since 引导一个句子,如果用since 应该为 since the rain is falling so frequently