You should be ____________．As everyone knows，study takes time．（ ）
A．strictB．worriedC．freeD．patient
Don't make noise in the hospital， _______？（ ）
| A． |
do you |
B． |
will you |
C． |
won't you |
D． |
don't you |
It's important for us _______ to our teachers when we have problems．（ ）
| A． |
to talk |
B． |
talking |
C． |
talks |
D． |
talk |
-Must I leave the reading room before 6o'clock？
-No， you _______． You can stay here until 6：30．（ ）
| A． |
can't |
B． |
needn't |
C． |
mustn't |
D． |
shouldn't |
The woman _______ is the most important in my life is my mother．（ ）
| A． |
which |
B． |
what |
C． |
whom |
D． |
who |
-Would you like a cup of coffee or tea？
-_______． I'd like some milk．（ ）
| A． |
Either |
B． |
Neither |
C． |
Both |
D． |
None |