Tom didn't go to work this morning.That was ( )he watched TV all the night yesterday.

问题描述:

Tom didn't go to work this morning.That was ( )he watched TV all the night yesterday.
A.because B.because of C.why D.for

because
because of 后面接的名词
前面是结果,不是后面的原因 c被排除
for 后面接名词