______ 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 problem |
相关试题
Had I hurried, I the tram.
| A. would catch |
B. could catch |
C. would have caught |
D. had caught |
It is important that we wild animals.
| A. will protect |
B. should protect |
C. shall protect |
D. are protecting |
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