问题

Was it two years ago ________ they firstmet
A:since
B:which
C:while
D:that
B:which
C:while
D:that
正确答案是:
同类题型
You must be looking forward to your trip to Sydney.—Yes. I wait any longer.[ ]
am pretty certain that the latest events you have just described can only _________ her unhappiness.
I always had doubts he would be the best man for the job , but now I don’t doubt he can do it.
_____ do you go to the zoo with your brother—Three times a month.