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”

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”

B
since ,as 从属连词,后接句子
for 做因为讲时,是并列连词,通常在句末,用逗号隔开
with 是介词。with+宾语+ 宾补(名词、形容词、副词、介词短语、分词、不定式)。

with 表示一个状态

since 引导一个句子,如果用since 应该为 since the rain is falling so frequently

如果选A, 应该是Since the rain falls so...,而不是falling,since后面要加完整的句子,而后面是非谓语,with可以引导非谓语。