Students in our school ________ know shouting is not allowed in the library．（ ）
A．canB．mayC．mustD．need
The math problem isn't difficult，and most of the students can work it out ______．（ ）
| A． |
hardly |
B． |
easily |
C． |
simply |
D． |
impossibly |
I have ever seen Alice in WonderlandⅡ（《爱丽丝梦游仙境Ⅱ》）．
When ______？
Two weeks ago．（ ）
| A． |
did you see it |
B． |
have you seen it |
| C． |
do you see it |
D． |
will you see it |
I want to call my mother．But I can't find my mobile phone．
Don't worry．My sister's phone is here．You can use ______．（ ）
| A． |
my |
B． |
mine |
C． |
hers |
D． |
her |
Why do you ______ so upset？
Because I didn't get the first place in the English competition．（ ）
| A． |
look |
B． |
sound |
C． |
smell |
D． |
feel |
Please be quiet．Our teacher is coming．
It ______ be our teacher．She has gone to Beijing．（ ）
| A． |
must |
B． |
may |
C． |
can't |
D． |
mustn't |