．— Have you ever visited the Opera House?
—Yes．When I was in Sydney, I ______ it twice．
| A．have visited | B．visited | C．had visited | D．would visit |
—What happened to Bill?
—He ________ really fast when suddenly he ran into a parked car.
| A．had run | B．was running |
| C．has run | D．has been running |
I thought the teacher would say something about our exam result but he ________ it.
| A．doesn't mention | B．hasn't mentioned |
| C．wouldn't mention | D．didn't mention |
—When are you leaving for Chicago?
—As soon as we ________ the project.
| A．are completing | B．completed |
| C．will complete | D．complete |
She is a wellknown doctor now, but she ________ as a cleaner at the hospital for five years.
| A．has worked | B．worked |
| C．had worked | D．works |
Some StraightA students in school ________ to be less successful in society than they ________ expected.
| A．turned out; are | B．have turned out; were |
| C．will turn out; were | D．had turned out; were |