24．You didn't believe John won the first prize at the speech competition, ______?
| A．did he | B．didn't he | C．did you | D．didn't you |
Ladies and gentlemen, I have the great privilege____ introducing our speaker for tonight.
| A．in | B．of | C．about | D．on |
_______ 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 |
The teacher recommended that everyone _______ this dictionary.
| A．bought | B．buying | C．buys | D．buy |
I admired my classmate Lisa very much. ______ her prettiness, she was smart and helpful.
| A．Except for | B．But for | C．Apart from | D．In spite of |
_______ about wild plants that they decided to make a trip to Madagascar for further research.
| A．So curious the couple was | B．So curious were the couple |
| C．How curious the couple were | D．The couple was such curious |