We're not sure _____________there'll be_____________ or not tomorrow．（ ）
| A． |
if； rains |
B． |
if； rainy |
| C． |
whether； rain |
D． |
whether； raining |
﹣I tried many ways to solve the problem， but of them worked．
﹣Never give up． You' ll surely make it．（ ）
A．allB．noneC．neither
Tony is the best student in the class because he works than the others．（ ）
A．hardB．harderC．hardest
﹣Must I hand in the survey on the use of bicycle﹣sharing right now？
﹣No， you ．（ ）
A．needn'tB．can'tC．shouldn't
﹣Do you enjoy Chinese Folk Songs？
﹣Yes， the folk songs nice．（ ）
A．soundB．smellC．look
I will give a T﹣shirt my brother as a birthday present．（ ）
A．byB．toC．from