Last night，the shop was closed she didn't buy any chocolate．（ ）
| A． |
so |
B． |
if |
C． |
or |
D． |
when |
Some old people need a _______ because they feel lonely．（ ）
| A． |
gift |
B． |
stick |
C． |
pet |
D． |
watch |
By the time the teacher came, we ______ cleaning the classroom．（ ）
| A． |
finished |
| B． |
have finished |
| C． |
had finished |
_____ walk on the grass．（ ）
| A． |
Doesn't |
B． |
Don't |
C． |
Not |
The coat looks very nice． Can I _____？（ ）
| A． |
try it on |
| B． |
try on it |
| C． |
try them on |