How about some more ice cream？
No，thanks．It's very good，but I have to _______ my weight，you know．（ ）
| A． |
prevent |
B． |
watch |
C． |
refuse |
D． |
keep |
Uncle Lee， may I use your bike？
Sorry， mine is broken． You can ask your aunt for _____（ ）
| A． |
mine |
B． |
his |
C． |
hers |
Is that Tom over there？
It _____ be him． He is on the plane to Chengdu now．（ ）
| A． |
can't |
B． |
might not |
C． |
must |
Sally's favorite _____ is orange．
I see．That's why all her sweaters are orange．（ ）
| A． |
fruit |
B． |
color |
C． |
juice |
That's the boy ____ won the first prize in the competition yesterday．（ ）
| A． |
who |
B． |
which |
C． |
whom |
We all look forward to ____ you again soon．（ ）
| A． |
see |
B． |
seeing |
C． |
seen |