Câu 21 Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.

Light pollution could stop astronauts from ___________ objects and activities in the sky and space.

A,view

B,to view

C,views

D,viewing

Câu 22 Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.

Viet Nam is a……………………….country.

A,rice-exported

B,rice-exporting

C,exported - rice

D,exporting- rice

Câu 23 Which following sentence has the same meaning as the original one?

If you don’t turn that TV off, I’ll go mad.

A,Unless you turn off that TV, I’ll go mad.

B,When you turn off that TV, I’ll go mad.

C,I’ll go mad because you turn that TV off.

D,Unless you turn off that TV, I’ll not go mad.

Câu 24 Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.

No one can make me…………………my plan.

A,changing

B,to change

C,change

D,changed

Câu 25 Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.

If you ( be) _____ Mr. Donald Trump now, what you (do) ____ to help the poor?

A,were – would you do

B,were - you would do

C,are – will you do

D,are – you do

Câu 26 Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.

An (illustrate) ______________ of agrochemicals is pesticides.

A,illustration

B,illustratively

C,illustrating

D,illustrative

Câu 27 Find the mistake among the underlined words/phrases in the sentence.

I find it hard to focus in studying when there is too much annoying noise form the neighbor.

A,much

B,in

C,annoying

D,is

Câu 28 Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.

Land pollution is responsible for damage done _____________ natural habitat of animals.

A,for

B,on

C,to

D,with

Câu 29 Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.

In many developing countries, water pollution is usually a leading cause of _________.

A,death

B,dead

C,die

D,dying

Câu 30 Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.

Water in the Cau River becomes brown and has terrible smell _____ the waste water is released from the paper mill in Thai Nguyen City

A,although

B,but

C,so

 D,since

Câu d nha bạn

Câu c

câu c nha bạn là Cáo đó

mNa=1,67.10−27.11+1,67.10−27.12=3,841.10−26(kg)

Đúng hay sai mình không biết nha :))

Bài 1:Thực hiện phép tính 

a)(3x^3-2x^2+x+2)(5x^2-2)

b)(x^3-5x-3)(-2x^2+3)

các bạn làm giúp mình với 

Ho Chi Minh was born in 1890 in Nghe An...province..., in the village of Kim Lien. When he...was..21 years old, he..left..VietNam and travelled to Afica, England and America. After this, he worked in a hotel in London in the early 1900s then moved to Paris in 1917. He..spent...6 years in Paris, one year in .Moscow and then moved to Guangzou. He founded .the Insochinese Communist Party when he lived in Guangzhou..During.the 1930s Ho Chi Minh continued to travel and after his return to VN he formed the VietMinh in 1941. Fours years....later.., he became...president...of the Democratic Republic of VN after VN declared its independence. Ho Chi Minh died in HN in 1969, but he will always be.remembered.by the Vietnamese people

Vì Đ1 nối tiếp Đ2

=>I = I1 =I1

=>I=I1= 0,6 

=>I1= 0,6 A

1. In our project, we encourage people to recycle glass, cans and paper.

A. prevent                   B. force                       C. make                       D. provide

2. Today I worked very hard, so I think I will sleep in tomorrow.

A. get up late               B. get up early C. sleep less                 D. oversleep

3. This is the worst meal I’ve ever eaten.

A. best                         B. first                         C. last                          D. scariest

4. Dinosaurs were the giant creatures that became extinct long time ago.

A. tiny                         B. scary                       C. enormous                D. scary