—Can I call on her next week ?
— Yes，if ______ .
| A．you are convenient | B．you will be convenient |
| C．it is convenient to you | D．it will be convenient to you |
—Have you got used to the Chinese food, Robert?
—Yes, but I don't like ________ when a Chinese host keeps serving me the food I don't like.
| A．this | B．that | C．those | D．it |
I think that's unlikely to happen, but if that ______ occur, both America's and China's interest would be severely damaged.
| A．should | B．could | C．would | D．might |
you may have , you should gather your courage to face the challenge .
| A．However serious a problem | B．Whatever serious a problem |
| C．However a serious problem | D．No matter how a serious |
I couldn’t do my homework with all that noise ________.
| A．going on | B．goes on | C．went on | D．to go on |
Economic growth in the world remains weak throughout 2012 and it is hoped that it will _____ gradually in 2013.
| A．break up | B．make out | C．work out | D．pick up |