1 . He must have been out of sense when he did that,      he?

A．hasn’t

B．mustn’t

C．didn’t

D．wasn’t

2 . — The authority concerned must have taken stricter measures to ensure traffic safety next year, ________it?
—Yes, definitely.

A．didn’t	B．mustn’t
C．hasn’t	D．won’t

3 . The employee might have been dismissed by the employer last month,______ ?

A．hasn't he	B．didn't he
C．wasn't he	D．mightn't he

4 . I’m afraid there might have been an audience of about 100,000 watching his live concert in Bird Nest last night, ________?

A．weren’t there	B．didn’t there
C．haven’t there	D．hadn’t there

5 . It is imagination—         it dreams, if you wish—that promotes the mind for healthy growth.

A．called	B．calling
C．to call	D．call

6 . ---What should I do with this passage?
---_______ the main idea of each paragraph.

A．Finding out	B．Found out
C．To find out	D．Find out

7 . Look！The ground is wet. It must have rained last night, ________？

A．hasn’t it	B．didn’t it
C．mustn’t it	D．hadn’t it

8 . There is little doubt in your mind that he is innocent, _______?

A．is there

B．isn’t there

C．is he

D．isn’t he

9 . ______ label to each of the trees, with detailed introduction of their features, and visitors will know more about them and how to protect them.

A．To attach

B．Attach

C．Attached

D．Having attached