How long you worked in this library?
How long you worked in this library?
I to work here the other day.
A have/have come B.did/came C.have/came D.did/have
我感觉应该选择A,但是答案给的是C,
Boys and girls,you should finish your homework first.And will be left till tomorrow.
A.me B.mine C I D my
我选C但答案给出B解释下!