问题

I ___________ frustrated when I wasn’t sure of thecorrect answer.

A: may be
B:used to
C:used to be
D:use to be

正确答案是：

同类题型

the rain stops, we’ 11 set off forthe station

Does this meal cost $50? I _______something far better than this!

I have tried very hard to find a solution to the problem, but in vain —-why not consult with Frank? You see, _________

a shame that you missedthe lecture on theBritish culture given by Thompson.— I _________ it, but I was busy preparing thecoming exam.

___________shoes do you want to buy—-Size 9.