Question

The place was flooded ________ it had been raining for several weeks.

A．because

B．because of

C．ever since

D．as a result of

Answer 1

A

短语辨析。      A. 因为，后面接从句 B.因为，后面接名词性短语   C. 从那时到现在D.因此；由于，后面接名词性短语。it had been raining for several weeks.为从句，结合句意可知选A。