The smoke that comes from a lit cigarette contains many different poisonous chemicals. In the past scientists did not think that these (1) ________ could harm a non – smoker’s health. Recently, though, scientists changed their opinion after they ( 2) ________ a large group of nonsmokers. They discovered that even (3)________ had unhealthy amount of these toxic chemicals in their bodies. As a ( 4) _______ of fact, almost all of us, breathe tobacco smoke at times, ( 5) _______ we realize it or not. For example, we can’t avoid smoke in restaurants, hotels and other public places. Even though many (6) _______ areas have “ No Smoking Is Permitted”. It is even harder for children to ( 7) _______ secondhand smoke. In the United States, nine million children under the age of five live in (8)_______ with at least one smoker. Research shows that these children are sick more (9)_______ than ones who live in homes where non – smokers live. The damaging effects of ( 10)________ smoke on children also continue as they grow up. The children of smokers are more than twice as likely to ( 11) ________ lung cancer when they are adults as children of nonsmokers. The risk is even higher among children who live in homes ( 12) _______ both parents smoke.

điền và giải thích vì sao điền như vậy

Each sentence has a mistake.Find the mistakes and correct them.(Giải thích vì sao sai)

1.The examiner asked me what my name was and where I come from 

2.I will call you when I have time

3.The new film has been attracted a lot of people all over the world

4.Swimmig,like all other kinds of sports,which is a form of muscle exercise

5.I think the best way to reduce garbage is to recycle and reused things

I want some............................about my old friends.(inform)

Câu 4: Quãng đường AB dài 99 km. Một ô tô đi với tốc độ trung bình 45 km/h và đến B lúc 13 giờ 12 phút. Hỏi ô tô đó đi từ A lúc mấy giờ, biết rằng dọc đường ô tô nghỉ 15 phút.

cho 6,9 ancol chỉ chứa 1 nhóm OH tác dụng với K tạo thành 1,68 lít khí xác định công thức phân tử ancol

Each sentence has a mistake.Find the mistakes and correct them.(Giải thích vì sao sai)

1.We decide to go for a picnic despite it rained very heavily.

2.It was not easy for us getting tickets for the concert.

3.Mr.Smith is going to uy a new Japanese car,doesn't he?

4.I met a lot of interesting people while I was studying at HCM city.

5.The water and land around the chemical factosy are serious polluted

6.The English course will start in May 29^th and finished in August

7.If he would speak more slowly,I could understand him

8.Your brother hardly goes to work by bus,does't she?

T or F(dẫn chứng)

Scientists have known a lot about the earth. They understand how mountains are made and what a volcano is. The following example is about volcanic eruptions. Mt. Vesuvius in Italy and Mt. St. Helens in the USA are both famous mountains. They are both volcanoes. A volcano is a mountain that is open at the top. Smoke and hot air come out of the hole. Sometimes very hot rock also comes out of the mountain. That can make trouble for people nearby. This is what happened with Mt. Vesuvius and Mt. Helens. Hot rock poured out of Mt. Vesuvius and covered the town of Pompeii in 79 A.D. Everyone in the town was killed. The Mt. Helens volcano didn’t kill many people
A volcano is a mountain that has a hole at the top
Mt. Vesuvius and Mt. St. Helensare both famous volcanoes  in Italy
Smoke,hot rock and hot air can make trouble for all people in USA and Italy
 the town of Pompeii was developed by the eruption of Mt. Vesuvius in 79 A.D