It was quite a serious accident, _____ caused by careless driving.
| A．which I think was | B．I think which was |
| C．which I think it was | D．I think which it was |
—Is John coming by train?
—He should, but he_______not. He likes driving his car.
| A．must | B．can | C．may | D．need |
Nobody recognized her at the ball because she________________as a maid..
| A．dress up | B．was dressing | C．was wearing | D．was putting on |
She spent all her spare time learning the courses, or she________ the first place in her school in the 2010 College Entrance Examination.
| A．wouldn’t take | B．wouldn’t have taken | C．hadn’t taken | D．couldn’t take |
—— Were all the passengers in the bus injured in the traffic accident?
—— No,____ only three of them who got hurt.
| A．it were | B．there was | C．it was | D．there is |
Although the necklace is not made of real crystal, it still ______ young tourists to this beautiful ancient city.
| A．appeals to | B．attracts to | C．accounts for | D．apply for |