He can't have gone out,___the light is still onA.becauseB.for

问题描述:

He can't have gone out,___the light is still on
A.because
B.for

B because 是直接原因
FOR是推测原因根据题意表猜测

A

He can't have gone out,_B__the light is still on
A.because
B.for
because接从句的话前面不能有逗号
假如后面的of的话就可以用because
而for则可以