Question

Her father was too tired_________ too much hard work.

A．because	B．as
C．for	D．because of

Answer 1

D

解析试题分析：句意:由于太多的繁重的工作他的爸爸太累了。A. because因为，后跟句子；   B. as由于，后跟句子；C. for 为了；because of由于，据句意，故选D。
考点：考查固定短语。