She found it __ hard work,but she enjoyed it.A.aB.anC.theD./

问题描述:

She found it __ hard work,but she enjoyed it.
A.a
B.an
C.the
D./

A,他发现它是一个艰难的工作。

Dwork前不能用冠词

D work 是不可数名词,不用冠词