_______ you may have， you should gather your courage to face the challenge.
| A．However a serious problem | B．What a serious problem |
| C．However serious a problem | D．What serious a problem |
Rather than _________for the love of music, nowadays more and more singers attach great importance to _________rich and famous by singing.
| A．sing；becoming | B．sing；become | C．to sing；become | D．to sing； becoming |
_________, the house itself is not quite our style, though the price is really attractive.
| A．To be honest | B．On the contrary | C．In addition | D．Above all |
I was told that there were about 50 foreign students __________Chinese in the school, most __________were from America.
| A．study；of whom | B．study；of them | C．studying；of them | D．studying；of whom |
I __________use a clock to wake me up because at six o'clock each morning the train comes by my house.
| A．couldn’t | B．mustn’t | C．shouldn’t | D．needn’t |
Would you please keep silent? The news that the milk contains a harmful chemical _________and I want to listen.
| A．has been broadcast | B．is being broadcast | C．is broadcast | D．is broadcasting |