They can’t go out to workthe heavy rain.A. becauseB. sinceC. because ofD. as a result

问题补充：

They can’t go out to workthe heavy rain.

A. because

B. since

C. because of

D. as a result

答案：

A. because

B. since

(答案→)C. because of

D. as a result

解析：句意：因为大雨，他们不能外出工作。because of因为，一般后接单词或短语。because因为，一般后接从句。