1 . Did the boys stop 　　　 much noise as soon as they saw Mr. Li coming?

A．to make

B．make

C．made

D．making

2 . In his free time,he likes traveling around, 　　　his discoveries by phone.

A．recording

B．to record

C．recorded

D．records

3 . 　　　 the people locked inside, the firemen broke down the door.

A．Reach

B．To reach

C．Reaching

D．To reaching

4 . Children need to ______ things for themselves in order to learn from nature.

A．experience

B．cause

C．exchange

D．affect

5 . The police woman ________ that I hadn’t fastened my seat belt and signaled me to stop.

A．spotted

B．explored

C．instructed

D．described

6 . —Alex, I will climb Mountain Tai next month.
— ______.

A．Enjoy yourself

B．Don’t mention it

C．It’s a pleasure

D．That’s all right

7 . He told me he should have been more careful but it would make no ______.

A．difference

B．different

C．differ

D．differently

8 . Life is a journey with trouble, but with confidence and ______you can work out any problem you meet.

A．wise

B．wisdom

C．comfortable

D．comfort

9 . If you run very fast for a long time, you will lose your ______.

A．border

B．fabric

C．carpet

D．breath

10 . As an adult, don’t let ______ steam at random, or you’ll let your family ______.

A．down; off

B．off; out

C．off; down

D．down; up