my surprise，the twins have nothing common．（ ）
| A． |
With； in |
B． |
To； in |
C． |
In； in |
D． |
To； of |
There are fifty students in this class， ________ of them are boys，so the number of the boys is 30．（ ）
| A． |
three fifth |
| B． |
three fifths |
| C． |
three five |
We should realize that everyone has his or her own merits （优点） and defects （缺点） ， so we must treat them ________．（ ）
| A． |
properly |
B． |
actually |
C． |
exactly |
Sam didn't jump so ________ as Jim in yesterday's sports meeting．（ ）
| A． |
high |
B． |
higher |
C． |
highly |
Sandy really likes eating meat， but she doesn't like eating________．（ ）
| A． |
breads |
B． |
vegetables |
C． |
chickens |
As we know， schools and families play ________ important role in teaching students about the value of working hard．（ ）
| A． |
the |
B． |
a |
C． |
an |