I don't know during the summer vacation． Do you have any advice？
How about visiting Beijing International Horticultural Expo（北京国际园艺博览会）？（ ）
A．what should I doB．when should I go
C．what I should doD．when I should go
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 |
We all like comedies _____ make us relaxed．（ ）
| A． |
who |
B． |
that |
C． |
whom |