1 . It is dangerous to play with ________. It may cause a fire.

A．pupils

B．knives

C．matches

2 . Sun Tao ________ his seat to an old lady on the crowded bus.

A．took

B．offered

C．brought

3 . —Who did you go to the old people’s home with yesterday?
—I went there ______. None of my friends were free then.

A．again

B．once

C．alone

4 . Tina doesn’t like making speeches (演讲). She feels ______ talking in front of the class.

A．angry

B．nervous

C．surprised

5 . Many families make ______ a rule to plant a young tree on Tree-planting Day.

A．this

B．that

C．it

6 . —What makes you ______ the job?
—Because I’ll move to another city.

A．give up

B．look for

C．cut off

7 . ______ you can’t work out the problem, perhaps you need to ask your classmates for help.

A．Unless

B．Though

C．Since

8 . —Peter, what were you doing at this time last night?
—I ______ chess with my grandfather.

A．play

B．played

C．was playing

9 . —Coffee or milk, Mrs. White?
—________ is OK. I care little about it.

A．Either

B．None

C．Neither

10 . —I’ve got a headache, Mom.
—Oh, you ______ keep the windows open while sleeping.

A．shouldn’t

B．needn’t

C．wouldn’t