问题

It was playing computer games that cost the boy plenty of time that he ______ spent doing his lessons.

A:might have
B:should
C:ought to have
D:could

正确答案是：

同类题型

I have two elder brothers, ____ in the army for ten years.

There is a feeling in me _______ we’ll surely find a cure for Aids

_________is very interesting to swim in the river in summer,but it’s dangerous.

It is reported that single-parent children _____ some of the functions that the absent adult in the house would have served.

If you have any trouble , be sure to call me .— .