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CMR: 3x-4 và 5-4x là 2 số ngyên tố cùng nhau

III. Choose the word whose underlined part is pronounced differently from the rest by circling the corresponding letter A, B, C or D. (1,2 point)
1. A. plays B. says C. days D. stays
2. A. what B. who C. where D. when
3. A. sport B. start C. listen D. eat
4. A. game B. geography C. vegetable D. change
5. A. station B. intersection C. question D. invitation
6. A. teacher B. children C. lunch D. chemistry
IV. Choose the word with different stress pattern. Write A, B, C or D in the space provided(0.8pt)
7. A. delicious B. difficult C. dangerous D. different
8. A. activity B. badminton C. basketball D. aerobics
9 A. sandwich B. chocolate C. cartoon D. toothpaste
10. A. correct B. receive C. visit D. unload
SECTION 3: VOCABULARY & GRAMMAR.V.
Choose the best answer to complete each sentence, identify your answer by circling the corresponding letter A, B, C, or D. )(4.0 points)
1. You can watch Harry Potter on TV ________ you can read it.
A. so B. and C. but D. or
2. “- ________ a nice T-shirt, Trang!” _ “ Thank you”
A. How B.What C. Which D. It
3. “- ________ films have you seen this week ?” _ “ Only one”
A. How many B. What C. Which D. Who
4. There aren’t ________ good films on TV at the moment
A. some B. any C. much D. a lot
5. If we cut down more trees, there ________ more floods.
A. are B. were C. have been D. will be
6. That is ________ book I’ve ever read
. A. the borest B. the boring C. the most boring D. the most bored
7. The opposite of "polluted " is ....................
A. fresh B. good C. dirty D. safe
8.We should use reusable water bottles ___________ of plastic ones.
A. instead B. because C. despite D. however
9. In the future, we won’t go on holiday to the beach but we ________ go on holiday to the moon.
A. must B. can’t C. might D. won’t
10. ________ you swim when you were ten?
A. Can B. Could C. Will D. Might
11. My father likes watching TV____________ he doesn’t like listening to music.
A. and B. so C. but D. because
12. We should use _____________pens and pencils to reduce rubbish.
A. reliable B.reusable C. refillable D. sociable
13. In the future, we will have ___________to do housework.
A. robots B. wireless TV C. smart phone D. hi-tech fridge
14. Eiffel Tower is the most attractive ____________in France.
A. building B. resort C. square D. landmark
15. We should use _________to save natural resources.
A. oil B. solar energy C. coal D. gas
16._______________ means creating new products from used materials.
A. Reduce B. Reuse C. Recycle D. Rebuild
17. If the ______________ is polluted, we won’t have enough food to eat.
A. water B. air C. noise D. soil
18.We should give unused clothes to_____________to help the people in need...
A. charity B. factory C. market D. hospital
19. ___________ are you going to stay here? ~ For a week.
A. How often B. How long C. How many D. How far
20. ______________.happens when water in lakes,rivers and oceans is polluted.
A. Air pollution B. Soil pollution C. Water pollution D. Noise pollution
VI. Supply the correct tense or form of the verbs in brackets. (2.0 points)
1. How long have you ( wait )_______  been waiting for me? – Just a few minutes.
2. Tony can (speak)________ speak two languages.
3. Every evening, my father (watch)______    watches television.
4. His parents (buy) are buying a new house next month?
5. Le Tam wants to be (be)________      a teacher after he leaves school
.6. There are lots of gray clouds in the sky. It (rain)_______    is raining.
7. Where is your mom now? - She (grow)_______   is growing vegetables in the garden.
8. children like ( ride)______ e-bikes to school
9. how much fruit thát farmer (produce)_______ every year?
10. he often says OK when he ( talk) ____________ with the guests.

 Câu 7. Nên làm gì để phòng bệnh viêm gan A?