Choose the best answer to complete these following sentences

1. When ____ to Da Lat?
A. did you move
B. have you moved
C. you moved
D. had you moved


2.He (start) (drive) to work 2 months ago because he (buy) a car.
A. starts – driving – will buy
B. started – driven – buys
C. has started – driving – bought
D. started – to drive – has bought

3.When you (finish) the entrance exam?
A. did you finish
B. have you finished
C. did you finishes
D. did you finished mn giải thích giúp mình luôn ạ