1. I am looking forward _______________ your reply.
2. Clean air provides us _______________ a healthy supply of oxygen.
3. The girl is waiting _____________ her father _____________ the school gate.
4. Sorry, I'm _______________ a hurry.
5. What a pity! We left him _______________ saying goodbye.
6. The school library is open _______________ every student.
7. I'm very grateful _______________ you for your invaluable help.
8. He smiled ________ me and then spoke _________ me _________ a foreign language.
9. People are looking ____________ more oil deposits.
10. You have to put ____________ your toys and go to bed. It's late.
11. Why don't we turn ____________ television? The seven-o'clock news is on now.
12. They turn ____________ the water while they repair a burst pipe.
13. If we keep ____________ using more and more cars, we'll run out of gas.
14. There is a power cut and all the lights went ____________.
15. Who is looking ____________ the baby when you are away?
16. Are you still looking ____________ a job?
17. Her father gave ____________ smoking last month.
18. Lan often looks ____________ her younger sister when her mother is out of town.
19. It will be raining ______________ the coast of Vung Tau.
20. The children are going to a park ______________ the other side of the river.