Teachers often use simple examples to _______ language points that are _______ the students.
| A．handle ;puzzled | B．express; puzzling |
| C．clarify; puzzling | D．conclude; puzzled |
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 |