—Must I return this book before Friday，Sir？
—No，you ________，dear.You can keep it for two weeks.（ ）
A．can'tB．shouldn'tC．mustn'tD．needn't
Today many foreigners enjoy working or studying China．（ ）
| A． |
to |
B． |
by |
C． |
on |
D． |
in |
Lucy and Claire are sisters．________often help their mother do the housework．（ ）
| A． |
We |
B． |
You |
C． |
They |
D． |
She |
In the following words，which underlined letter of the word has a different sound from the others？（ ）
| A． |
fact |
B． |
address |
C． |
alive |
D． |
asleep |
Miss Gao often advises we should search for some on the Internet about science．（ ）
| A． |
instruction |
B． |
introduction |
| C． |
information |
D． |
invention |
I'm a little nervous before the coming exam．
___________． I'm sure you can make it．（ ）
| A． |
Sounds great |
B． |
Have fun |
| C． |
Don't worry |
D． |
You're welcome |