Question

_______ the rain falling so hard, it becomes more and more difficult to carry on the rescue work.

A．Since

B．As

C．With

D．For

Answer 1

C

since和as是连接词，后面要加句子。而with是介词，后面加名词短语意思是随着。For为了，表示原因。句意：随着雨下得如此大，救援工作变得越来越难。故选C。