1 . The boy is having a fever. You’d better damp a towel and lay it ______ his forehead.

A．across	B．within
C．through	D．beyond

2 . My father warned me      going to the West Coast because it was crowded with tourists.

A．by

B．on

C．for

D．against

3 . The post office is closed ______ Saturday afternoon.

A．on

B．in

C．of

D．at

4 . Based on a true story, the film shows a hero racing ______ time to get back the stolen papers.

A．behind	B．against
C．about	D．at

5 . Fred entered without knocking and, very out of breath, sank _______ a chair.

A．on

B．off

C．into

D．to

6 . For better sound effects, he was asked to speak ______ the microphone during the whole process.

A．in	B．for
C．into	D．from

7 . If you can do what you’re weakest ______, you can handle any challenge.

A．for	B．at
C．with	D．to

8 . _______ entering the classroom, remember to take your seat and turn off your cell phone.

A．At

B．From

C．Upon

D．As

9 . Today, ________ rapid transportation and communication, the whole world seems to be smaller.

A．regardless of	B．in spite of
C．instead of	D．because of

10 . He is very tired，so he needs some time ________ duty for relaxation and rest.

A．through	B．on
C．with	D．off