All over the world the mobile phone has become _____ people would now call a necessity.
A. which B. that C. what D. when
Either the driver killed in the car or the lucky passenger questioned by the police ______ them very puzzled how this accident has happened.
A. make B. makes C. was making D. were making
I was told that the water of the Ganjiang River is much cleaner than ____ of the Xiangjiang River.
A. those B. one C. that D. ones
She didn’t allow the accident to discourage her. On the contrary, she began to work .
A. as twice hard B. twice as hard
C. twice as harder D. harder twice
Thank you for the great effort you _____ to find us the right person for the job．
A. had B. got C. took D. made
— You look tired.
— Yes. I ___ non-stop until 8 o’clock this morning.
A. had worked B. work C. have worked D. was working
