1.They felt unsafe until they had crossed the border

-->Not until...... they crossed the border, they felt unsafe

2.The film will start before we arrive

-->By the time.. we arrive , the film will start before..............

3.The car is too expensive for me to buy

-->I can't...buy the car because it is too expensive ....

4.He took me to HRF Restaurant

-->I remember... that he took me to HRF restaurant.

5.She didn't attend the class because her illness was seriously

-->She was..... seriously ill so she didn't attend the class.. ...

6.Without your information, I wouldn't have made the beatiful speech

--> If you hadn't had information , I wouldn't have made the beatiful speech

7.It was careless of you to park your car there

-->You should...park your car there more carefully....

8.I missed the train

-->By the time....... I missed the train.

9.Why don't you stay at home?

-->I'd rather...you stayed at home.....

10.Tom speaks so slowly that the students get bored

-->Tom is such..a slowly speaker that the students get bored.....

11.He had his car repaired yesterday

-->His car...had repaired by him yesterday ....

12.It is believed that she saved the boy

-->She is believed....that she saved the boy

13.The flight was cancelled because of the heavy rain

--> Because it rained heavily, the flight was cancelled........

14.The house was too expensive for us to buy

--> The house was too expensive that we didn't buy.

15.I used to work as a waiter

-->No longer...I work as a waiter ........

16.May I borrow your bicycle?

-->Would....you mind if I borrowed your bicycle ?...

17.You are old enough to look after yourself

-->It's....... old enough for you to look after yourself.............

18.Why don't you take the medicine?

-->If....you took the medicine , you would be better....

19.Iam interested in why she didn't turn up at the meeting

-->The only thing.. I care about is why she didn't turn up at the meeting.

20.I'm sure she didn't steal your ring

-->She can't....... steal your ring.........

21.She rang as soon as they locked the door

-->No sooner... had they locked the door than she rang. ....

22.I wish you had seen your dentist yesterday

-->You should..see your dentist yesterday....

23.If you keep silent, we will begin our lesson

-->So..you keep silent , we will begin our lesson​....

24.I'm sure it wasn't her fault

-->It can't.... be her fault....

Câu 1 : 221

Câu 2 : 54

Câu 3 :99090

Câu 4 :36

Câu 5 :1495

Câu 6 :36838

Câu 7 :2164

Câu 8 :599

Câu 9 :

Câu 10 :33

bạn có thể nói dõ hơn được ko m ko hiểu gì cả

10+10=20

chinh sac

\(3x-3=50\)

         \(3x=50+3\)

         \(3x=53\)

             \(x=53:3\)

            \(x=\frac{53}{3}\)