We didn’t arrive at school on time yesterday morning the heavy snow.A. becauseB. because

问题补充：

We didn’t arrive at school on time yesterday morning the heavy snow.

A. because

B. because of

C. so

D. so that

答案：

A. because

(答案→)B. because of

C. so

D. so that

解析：句意：因为大雪的原因，我们没有准时到达学校昨天早晨。分析考查原因部分为短语类，因此用because of,如果是一个句子，就要用because.故选 B