问题

To pay to see that movie seems foolish ________ you can see it on television for free
A:before
B:though
C:when
D:once
B:though
C:when
D:once
正确答案是:
同类题型
Our teacher told us that light _____ much faster than sound.
If you ______ go, at least wait until the storm is over.
He was __________of having asked such a silly question.[ ]
I was playing computer games my brother was doing his homework.
Who has made a mess in my room— Who else _______ have done it but your naughty son