There is some doubt _______ we can get the first place in the competition.
| A．whether | B．if | C．that | D．how |
Whatever he explained, he couldn’t ____ the policeman that he was innocent．
| A．confirm | B．present | C．convince | D．admit |
You must attend the meeting ____ at ten o’clock, as it is scheduled—not a minute early or late．
| A．accurately | B．punctually | C．flexibly | D．approximately |
On the Eve of the Spring Festival, we Chinese people like to play with fireworks, and the noise doesn’t ____ until after midnight．
| A．die away | B．die off | C．die out | D．die down |
—Will you be____this afternoon, Jack?
—It depends．I’m afraid I’ll be called by my boss．
| A．available | B．accessible | C．convenient | D．suitable |
I can remember very few ____ when he had to cancel his plans because of poor health．
| A．situations | B．conditions | C．occasions | D．circumstances |