桵ay I go now?

桸o, you ________. You ________ stay here.

A. needn't；have to

B. needn't；must

C. mustn't；have to

D. mustn't；has to

You ________ be careful with fire when you have a picnic in the forest. It's too dangerous.

A. will

B. must

C. can

D. may

梇esterday it rained heavily when school was over. We ________ stay in our classroom.

梂hat a pity!

A. should

B. must

C. had to

Ask the policemen over there. He ________ know the way to the Science Museum.

A. hes to

B. could

C. may

D. need

梂ill you stay here for dinner?

桽orry, I ________. I have something important to do.

A. don't

B. didn't

C. needn't

D. can't

Now I spend time ________ what I love to do.

A. to do

B. doing

C. do

D. did

I cannot ________ that man. He talks too much.

A. stand

B. like

C. love

D. stand for

I'm sorry I'm very busy at present. You'd better ask ________for help.

A. some one else

B. some else body

C. somebody else

D. anyone else

桵ike, stop! You can't do that.

梍_______ shout at him. You will frighten him.

A. Not

B. Not to

C. Don't

D. To not

_______ cross the road before the traffic lights turn green.

A. Not

B. Won't

C. Don't

D. Doesn't