Young people should go ____ working conditions are difficult.
| A．in which | B．which | C．that | D．where |
He knows China very well. That is，he has__ good understanding of___ Chinese history.
| A．／；the | B．／；／ | C．a；a | D．a；／ |
I always take something to read when I go to the doctor’s I have to wait.
| A．as if | B．in order | C．so that | D．in case |
I have had my bike , and I’m going to have John my radio tomorrow.
| A．repair; to repair | B．repairing; to be repaired |
| C．repaired; repair | D．to repair; repairing |
The little boy is dirty from head to foot because he in the mud all morning.
| A．has played | B．has been playing | C．is playing | D．was playing |
here yesterday, he would attend the lecture with us today.
| A．Were he | B．If he were | C．Had he been | D．Should he be |