------What’s Mr. Green doing there?
------He is looking for a space _________his car.

The police warned the children __________the football in the street.

They spent _________time ___________ the computer games.

The students asked Mr. Wang ______ them some advice on reading.

They surveyed the area  __  the tomb faced south.
A.make sure  B.making sure  C.to make sure

It took him half an hour _____ the work.
A.doing    B.to do      C.did

I like him because he makes me______.
A.to laugh   B.laugh   C.laughed

--Mark, would you like _________tennis with me after school?
--Yes, I’d love to.

________to the zoo, turn left when you come to the crossroads．

Most students hope _______well in their study.