问题

Is it for two months ______ they have stayed here?-No,it is only three weeks ______they arrived here.[ ]
A:that;since
B:that;when
C:when;that
D:since;before
B:that;when
C:when;that
D:since;before
正确答案是:
同类题型
_________car accidents have happened recently
Would you please __________your radio a little I can hardly go to sleep. — Oh, sorry.
Tony wanted to take some good photos,______ he lost his camera.
Juliana worked harder to ______ for the time she had lost when she was ill.
He didn’t make________clear when and where the meeting would be held. [ ]