21. ...............bad weather!

A. What B. How C. What a D. How a

22. What’s wrong..........your son?

A. for B. with C. on D. to

23. Remember to...........the lights before you leave the room.

A. turn on B. turn down C. turn off D. turn up

24. ............books is his hobby.

A. Reads B. Reading C. To reading D. Read

25. This lake is not clean. It is.................

A. nice B. fresh C. polluted D. beautiful

26. ..............you don’t stop taking, the teacher will punish you.

A. Although B. If C. Unless D. While

27. My uncle and................will go to Ha Long Bay.

A. I B. me C. my D. mine

28. – “ ................do you visit your grandparents?” – “Once a week”

A. How long B. How C. How often D. How old

29. – “ Could you give me my book?”

A. Yes, thanks B. Sure. Here you are. C. No, thanks D. Yes, please

30. Those are __________ children. _____ are students.

A. mine/ They B. my/ Them C. mine/ Their D. my/ They