1 . It may be necessary to stop______in the learning process and go back to the difficult points in the lessons.

A．at intervals	B．at random
C．at ease	D．at length

2 . The driver stopped his car so _____ that he was hit by the cab right behind him.

A．impolitely	B．violently
C．abruptly	D．cautiously

3 . It is typical of Jim to feel shy; he will feel ______ in the presence of strangers.

A．out of order	B．out of place
C．out of control	D．out of breath

4 . The spokesman was very ______ about expressing his opinions in public in case he might make mistakes.

A．cautious	B．capable
C．consistent	D．controversial

5 . If you completely ____ foods and drinks that you love， you'll only set yourself up to go on a large amount of those items later．

A．take out	B．cut out
C．give out	D．put out

6 . If a friend snaps at you or is unfriendly, step back, and with a sense of compassion, try to experience life from his____．

A．perspective	B．priority
C．privilege	D．policy

7 . The way he acted towards people was to keep on good terms with them ______ principle, which was usually thought little of.

A．at the mercy of	B．at the risk of
C．at the expense of	D．at the bottom of

8 . From the course of human development, the ultimate aim of the human race is to pursue the spiritual joy based on ______ materials.

A．artificial	B．primitive
C．relevant	D．ample

9 . He is busy writing the article all the morning, only ________ occasionally to have a cup of coffee.

A．breaking off	B．breaking down
C．breaking through	D．breaking up

10 . If you can’t trust your friend to have a relationship with another person you consider a friend, it’s a clear ______ of a problem in your friendships.”

A．disappearance	B．symbol
C．symptom	D．settlement