1 . If you have problems, you can consult Mr. Zhang, who is a(an) ________ on mathematics.

A．memory

B．expert

C．desert

D．career

2 . Finding information in today’s world is easy. The ________is how you can tell whether the information you get is useful or not.

A．knowledge

B．ability

C．competition

D．challenge

3 . With his attention________on his book, he noticed nothing.

A．concentrated

B．concentrate

C．concentrating

D．to concentrate

4 . Not drinking enough water _____ lead to headache and poor physical performance.

A．can

B．must

C．should

D．need

5 . Some diseases ________ quickly from one person to another.

A．move

B．catch

C．spread

D．expand

6 . You'll have to pay one month's rent in ________，plus a ________ of $500.

A．advance；check	B．reservation；cash
C．advance；deposit	D．check；deposit

7 . When asked how to be a good manager in the interview, the ________ described good personal characteristics as the necessity to manage a group and get a job well done..

A．applicant	B．clerk
C．employee	D．bachelor

8 . Christine is ______ about anything but her dress as she doesn’t really care about what she looks like in the eyes of others.

A．cautious	B．optimistic
C．particular	D．curious

9 . The firm was badly in ______need of a manager with ______better command of French.

A．a; /	B．the; a
C．/;a	D．/;the