V. Chän ®¸p ¸n ®óng nhÊt trong c¸c ®¸p ¸n A, B, C, hoÆc D.
1. My father is ........ man.
A. a old B. an old C. not young D. not very young
2. What was the matter with him? He …….. a toothache
A. to have B. have C. has D. had
3. Do you have any toothpaste? I’d like a large ...................
A. tin B. roll C. bar D. tube
4. What ..... does Peter study at school? - He has Maths, English, Art….
A. objects B. subjects C. food D. drink
5. Bangkok is ............. capital of Thailand.
A. a B. one C. X D. the
6. There are ................. girls in his class.
A. not B. no C. none D. any
7. ......... she plays the piano!
A. How beautiful B. How beautifully C. What good D. What well
8. On .... we often go out.
A. nights of Saturday B. Saturday nights C. Saturday’s nights D. none is correct
9. I don’t want much sugar in coffee. Just ........., please.
A. little B. a little C. few D. a few
10. The weather is ..................... today than yesterday.
A. much better B. very better C. too better D. so better
11. A. Always they do their homework. B. They always do their homework.
C. They do their homework always. D. They always do their homeworks.
12. Why do you like Music? Because I like …..
A. to read B. to draw C. to write D. to sing
13. It’s very hot. Why ...... go swimming?
A. not we B. not C. don’t we D. Both B & C are correct
14. At an intersection, you ....... slow down.
A. can B. should C. must D. have
15. Which word has the final sound /s/:
A. bananas B. carrots C. apples D. guavas
16. Don’t move. You have a .............. leg.
A. break B. breaking C. broke D. broken
17. If there aren’t any trash cans, we should put it in a bag and ..................... .
A. take it to our home B. take it to home C. take it home D. take it back our house
18. Make sure ........... is no traffic.
A. they B. it C. there D. some
19. Let’s eat here. The ............. seems very good.
A. list B. paper C. programme D. menu
20. Don’t ..................... electricity.
A. save B. waste C. use D. leave
a/ \(\left(x-1\right)^2=x^2-2x+1\) nên chọn đáp án D
b/ \(\left(x+2\right)^2=x^2+4x+4\) nên chọn đáp án C
c/ \(\left(a-b\right)\left(b-a\right)=-\left(a-b\right)\left(a-b\right)=-\left(a-b\right)^2\) nên chọn đáp án A
d/ \(-x^2+6x-9=-\left(x^2-6x+9\right)=-\left(x-3\right)^2\) nên chọn đáp án D