The girl in the classroom ______ be Sarah．She has gone to the library．（ ）
A．mayB．mustC．can'tD．needn't
You'd better your coat，it's very cold outside．（ ）
| A． |
wear |
B． |
put on |
C． |
dress |
Where's my ruler？I can't it anywhere．（ ）
| A． |
look for |
B． |
find out |
C． |
find |
Could I ask you some questions？
Yes，you ．（ ）
| A． |
can |
B． |
could |
C． |
must |
she is only seven，she can cook dinner．（ ）
| A． |
But |
B． |
So |
C． |
Though |
English is as as math．（ ）
| A． |
important |
| B． |
more important |
| C． |
the most important |