问题
When walking down the street, I came across David, when I _____ for years.
A:didn’t see
B:haven’t seen
C:hadn’t seen
D:wouldn’t see;
B:haven’t seen
C:hadn’t seen
D:wouldn’t see;
正确答案是：
同类题型
answer the phone when the cell phone is being charged, for it ________ be very dangerous sometimes.
What’s your plan for the coming weekend— ___________.
Does your father like _______ computer games at home –Not really.
Why did the police ______________the crowd?—Because the president’s car __________in the street.