1. B. polluted
2. A. because
3. C. reduce
4. C. on
5. D. awareness

1 B

2 B

3 C

4 C

5 D

After the tornado hit, there were only a few houses left standing.

+, Dịch: Sau khi lốc xoáy ập tới, chỉ còn lại vài ngôi nhà đứng vững.

+, Cấu trúc: After + S₁ + V_qkđ, S₂ + V_qkđ

There were only a few houses left standing after the tornado hit

17. It is possible that we find living things on another planet.

18. I find her story about UFOs hardly believable.

19. Environmental pollution has led to the disappearance of many species of plants and animals from our planet.

20. Many UFO sightings have been recorded by the United States government.

1 living

2 believable

3 disappearance

4 sightings

Mono said Truong Thi Ha would feel shy because she often sobbed documents to sell.

I asked my friend if he/she had had a car accident the previous month.

Mono said that Truong Thi Ha would feel shy because she often sobbed documents to sell

I asked my friend if he had had a car accident the month before

5. The farmer ______________ in the field when he saw a UFO.

    A. is working          B. was working           C. worked                   D. works

6. Scientists float in a space station because there’s no ______________.

    A. technology         B. science                    C. gravity                    D. air

7. The world’s ______________ is growing more quickly every year. Our planet is becoming more and more crowded.

    A. pollution             B. popularity               C. population              D. pollutant

8. A: What is the word that means 'very small'?

B: I think it's '______________'.

    A. huge                   B. strange                    C. tiny                         D. scary

9. The magician was standing on the stage, but then he suddenly ______________.

    A. saw                     B. heard                      C. appeared                 D. disappeared

10. The UFO hovered ______________ our house for a few minutes then disappeared into the clouds.

    A. above                  B. under                      C. inside                      D. on

11. Those aliens looked really scary. I was ______________ when I saw them!

    A. delighted             B. terrified                  C. happy                      D. bored

12. I think she is sick. She ______________ to school tomorrow.

    A. will go                B. won't go                  C. is going                   D. doesn't go

robots will replace humans in 30 years

the bus schedule said that there will be a bus to Bac Kan city at 8.30

4 Robot will replace humans in 30 years

5 The bus schedule says that there is a bus to Bac Kan City at 8.30

She had dinner with her family at 6:30 pm yesterday

had thôi ez 

we should practice everyday for the show

We should practice everyday for the show, shouldn't we?

1. know

2. open

1. They knew how to drive a car when I was 21.

2. Tomorrow the museum opens at 10:00 am.