1.We've given up ............ to persuade them

A.trying/changing

B.trying/to change

C.to try/changing

D.try/to change

2.Johnny..........the paper when I ....... him

A.read/interrupted

B.read/was interrupting

C.has read/interrupted

D.was reading/interrupted

3.We were told........... and fasten our seat belts

A.to sit down

B.sitting down

C.sit down

D.that sit down

4.It was the most.......... experience of my life

A.frighten

B.frightening

C.frightened

D.frightful

B.

It__________(happen) twoyears agowwhen I _________(ski) in Austria.It was a horrible day because it _______snow and I_______ (can't see_ anything.I ______(not want) to ski but my friend said:''Come on.This is our last day.We must go''. So I went.I_________(not ski) in conditions like that before so when my friend______(decide) to go right up to the top of mountain, I _________(not join) them.After about half an hour by myself , i ______(stop) because I was cold and wet.I _________(get) into the cable car to go down to the village and my wonderful warm hotel when I __________ (slip) on some ice.I _________(fall), and my skis______(fall) on top of me.I__________(hear) a terrible noise and knew something bad____________(happen).My leg was broken.What a way of ending a holiday.

A.

I was a student at Oxford University.Like many students I did not have ......(1)...... money.Last year I ........(2)........ to go to Manchester to visit some of my friends for the weekend.The train ticket was expensive for me so I decided to hitchhike.

I caught a bus to the beginning of the motorway and waited.It was cold,windy November day and while I ......(3)........ I got soaked to the skin.After waiting two hours I finally got a lift from a lorry driver,who ............(4).......... to Manchester.I felt pleased.The lorry driver was a nice man and we .......(5)............. a lot.Suddenly,as we .............(6)............ along the motorway, a police car raced past us and made us ...........(7)............... We were taken to the police station.The police.......(8)......... the lorry waas carrying stolen goods.A police...........(9).......... me a lot of question,and I spent the night in the police station.I was released the nest day.The lorry was carrying stolen TV sets.I swore that I would never...........(10)........... again.

Correcting mistakes

1.All the children have been returned safe to their parents.

2.I know you're too busy to stay,but I look forward to see you again.

3.Have you forgotten to lock the back door frequently?

4.The bank lent us money for a down payment, so now we owned the house we used to rent.

5.A college education is not only preparation for a career but it should also is preparation for life.

6.Today,it is quite common for adults of all ages to come back to college neither for career advancement or knowledge.

7.Parents are used to being worried whenever their children have to travel somewhere because of there is often so much traffic.

8.When I was a child,summer would be warmer and winters colder than now.

9.What do you use to do when you felt afraid?

10.I've been studying French since I've high school.

11.You have to buckle your seat belt now or you couldn't drive.It's the law.

12.She 's always annoying about something.

13.I can't find my diary,that is a real nuisance.

14.None of the young in the village can find job.

15.Helen Keller,who was both blind and deafness,overcame her inabilities with the help of her teacher.

16.Lake Superior, that lies on the US Canadian border , is the largest lake in North America.

Correcting mistakes

1.All the children have been returned safe to their parents

a)\(x+\dfrac{2}{3}=\dfrac{5}{6}.\dfrac{3}{10}\)

\(x+\dfrac{2}{3}=\dfrac{1}{4}\)

\(x=\dfrac{1}{4}-\dfrac{2}{3}\)

\(x=\dfrac{-5}{12}\)

Vậy \(x=\dfrac{-5}{12}\)

b)\(\dfrac{7}{9}-\dfrac{5}{9}:x=\dfrac{1}{6}\)

\(\dfrac{5}{9}:x=\dfrac{7}{9}-\dfrac{1}{6}\)

\(\dfrac{5}{9}:x=\dfrac{11}{18}\)

\(x=\dfrac{5}{9}:\dfrac{11}{18}\)

\(x=\dfrac{10}{11}\)

Vậy \(x=\dfrac{10}{11}\)

c)\(\left|x\right|+\dfrac{1}{5}=\dfrac{3}{2}\)

\(\left|x\right|=\dfrac{3}{2}-\dfrac{1}{5}\)

\(\left|x\right|=\dfrac{13}{10}\)

TH1:\(x=\dfrac{13}{10}\) TH2:\(x=\dfrac{-13}{10}\)

Vậy \(x\) thuộc \(\dfrac{13}{10},\dfrac{-13}{10}\)