问题
Only after they had discussed thematter for several hours ______ an agreement.
A:they reached
B:do they reach
C:they reach
D:did they reach
B:do they reach
C:they reach
D:did they reach
正确答案是：
同类题型
Linda, how is your physics project _______—Very well. I’ll finish it tomorrow.
I have seldom seen my mother ________ pleased with my progress as she is now[ ]
Is Peter there?-________ ,please. I’ll see if I can find him for you.[ ]
Progress ________ so far very good and we are sure that the work will be finished on time．[ ]