The sports meeting won't be put off _____ it rains．（ ）
A．untilB．ifC．unlessD．whether
Who is better______playing basketball，you or your brother？（ ）
| A． |
at |
B． |
in |
C． |
on |
Is this your book？
No．It's not ．It's ．（ ）
| A． |
my； his |
B． |
mine； hers |
C． |
me； him |
Li Qiang is_____ honest boy．He wants to be _____useful person when he grows up．（ ）
| A． |
a，an |
B． |
an，a |
C． |
a：a |
Could you tell me_______？
At nine o'clock，in ten minutes．（ ）
| A． |
how will he leave |
B． |
when he has left |
| C． |
why he is leaving |
D． |
when he will leave |
Would you mind if I take the seat next to you？
_________．The person who was here has finished his lunch and left．（ ）
| A． |
Certainly not |
B． |
Enjoy yourself |
| C． |
Don't trouble me |
D． |
Yes，please |