You, who ______ his good friend, should help him get out of trouble.
| A．am | B．is | C．are | D．was |
________ some teenagers don’t realize is ________ difficult life can be after they get
addicted to drugs.
| A．That, how | B．That, what |
C．Wh at, what a |
D．What, how |
Please correct the mistakes ________.
| A．if there are | B．there are mistakes |
| C．if any | D．if any mistakes |
The ________ look on his face sug
gested he ________ that.
| A．surprising, hadn’t expected | B．surprising, should expect |
| C．surprised, wouldn’t have expected | D．surprised, hadn’t expected |
Attention, please! And keep ________ when I am taking a photograph of you.
| A．still | B．calm | C．quiet | D．silent |
______ him to do like this, he wouldn’t have made such a serious mistake in his
writing.
| A．Did you persuade | B．Had you persuaded |
| C．If you should persuade | D．If you persuade |