I’m sorry I’m late again heavy rain.A. asB. soC. becauseD. because of

问题补充：

I’m sorry I’m late again heavy rain.

A. as

B. so

C. because

D. because of

答案：

A. as

B. so

C. because

(答案→)D. because of

解析：句意：很抱歉，因为大雨我又迟到了。because为连词，后面必须跟完整的句子，而because of为介词短语，后面通常跟名词、名词短语或代词等，故选D。