问题

Can you watch TV ________ school nights—Yes, but I have to be _______ bed ________ten o’clock.
A:in; on; by
B:on; on; in
C:on, in; by
D:in; in; at
B:on; on; in
C:on, in; by
D:in; in; at
正确答案是:
同类题型