---- What did your parents think about your decision?
----They always let me do   I think I should.
| A.when | B.that | C.how | D.what | 
She was educated at Beijing University, ___ she went on to have her advanced study abroad.
| A.from which | B.after that | C.from that | D.after which | 
Sarah, hurry up. I’m afraid you won’t have time to ____ before the party.
| A.get changed | B.become changing | C.make changed | D.have to change | 
What do you think _____ do to protect wildlife?
| A.should we | B.we should | C.it we should | D.it is we should | 
I have to go to work by taxi because my car ____ at the garage.
| A.will be repaired | B.is repaired | C.is being repaired | D.has been repaired | 
My neighbor’s daughter changed so much that I didn’t ____ her at first sight.
| A.realize | B.recognize | C.research | D.reserve |