It's our duty our hometown clean and beautiful．We must do something for it．（ ）
A．keepingB．keepsC．to keep
The little boy hid himself ____________ the door to give his sister a surprise.（ ）
| A． |
behind |
B． |
above |
C． |
across |
D． |
under |
Judy and Lily like sports，and________ often play volleyball after school.（ ）
| A． |
we |
B． |
you |
C． |
their |
D． |
they |
Locus usually has _________ egg and some milk for breakfast.（ ）
| A． |
a |
B． |
an |
C． |
the |
D． |
/ |
Which sign means that you can park your car here？（ ）
| A． |
|
B． |
|
C． |
|
D． |
|
- Must we clean the classroom now？
-_____________.You can clean it after school.（ ）
| A． |
Yes，you must |
B． |
Yes，you can |
| C． |
No，you needn't |
D． |
No，you mustn't |
