Xin lỗi, tớ nhầm. Câu trả lời đúng phải là bản đồ

1923 + 2934 + 273 : 3 x 103

=1923 + 2934 + 91 x 103

=1923 + 2934 +  9373

=4857 + 9373

= 14230

không phải Nguyễn TẤt Anh Quân sai rồi

đó phải là con người chứ bây giờ công nghệ tiên tiến rồi lên mạng sớt thì ngồi đâu cũng được

Says

Complete the following passage.

People need to breathe. If they don't breathe, they will die. But how clean is the air people breathe? If they breathe (1) __________ air, they will have breathing problems and become ill. Plants and animals need clean air too. A lot of things (2) __________ our lives create harmful gasses and make the air dirty, like cars, motorbikes and factories. Dirty air is called " (3) __________ air". Air pollution can also make our Earth (4) __________. The problem of air pollution started with the burning of coal in homes and factories.

Question 2:

A. at

B. in

C. to

D. on

Complete the following passage.

Every spring, children go (1) __________, so Mr. John and his wife go to Paris on holiday. They stay in a hotel near The River Seine. They (2) __________ breakfast in the hotel, but they have lunch in a restaurant next (3) __________ the hotel. They like French food very much. They walk a lot, but sometimes they go (4) __________ taxi. After four days, they want to go home and go back to work.

Question 4:;

A. on

B. by

C. in

D. to