He behaved _____ nothing had happened.
| A．even if |
| B．as if |
| C．just like |
| D．even though |
–She looks very happy. She ________have passed the exam.
--I guess so. It’s not difficult after all.
| A．should | B．must | C．could | D．might |
The Australian boy has a good __________ of Chinese and can express himself freely in it.
| A．demand | B．power | C．command | D．usage |
Be ___________ ---you can’t expect me to finish all this work in so little time.
| A．grateful | B．confident | C．reasonable | D．creative |
—Do you like working as a waiter?
—Yes, but I get tired ______ standing the whole day．
| A．with | B．for | C．to | D．of |
_____enough time and money, I'm sure I will do the work perfectly．
| A．Give | B．Giving | C．Having given | D．Given |