1. America is thought to have been found by Colombus before others

cấu trúc câu bị động kép

2. One of the boys suggested going to the theatre that night

suggest + V-ing: đề xuất làm việc gì, và vì là dạng tường thuật gián tiếp nên tonight -> that night

3. If I hadn't missed the bus, I wouldn't have been late for the meeting

câu điều kiện loại 3 (giả định về 1 tình huống không có thật trong quá khứ)

4. She asked, "How much does the Colombian coffee cost?"

dạng tường thuật gián tiếp chia quá khứ đơn nên dạng tường thuật trực tiếp chia thì hiện tại đơn (vì khi chuyển từ trực tiếp -> gián tiếp phải lùi 1 thì)

5. Having had nothing else to do, we decided to go for a walk

sử dụng mệnh đề phân từ hoàn thành (Having + quá khứ phân từ của động từ) để nói về lý do cho hành động trong mệnh đề chính (2 mệnh đề này phải cùng chủ ngữ)

Viết lại câu :

I think it would be better if you dont eat this meat

=> if I were you, I wouldn't eat this meat

Lock all the doors and noone can break into your house( viết lại vs If , Unless )

=> If you lock all the doors, noone can break into your house

Or: Unless you lock all the doors, someone can break into your house

I think you should do something to protect the environment

=> If I were you, I would do something to protect the environment

You shoud pay electricity bill today or your electricity will be cut off ( If , unless )

=> If you pay electricity bill today, your electricity will not be cut off

Or: Unless you pay electricity bill today, your electricity will be cut off

Viết lại câu sao cho nghĩa không đổi :

1 , Study hard , or you will fail the test .

If you study hard, you won't fail the test .

Unless you study hard,you will fail the test .

2 , Go on a picnic with us , and you will feel excited .

If you go on a picnic with us ,you will feel excited .

unless you go on a picnic with us ,you won't feel excited

3 , Stay inside , or else you will get cold .

If you stay inside , you will not get cold .

Unless you stay inside , you will get cold .

4 , Practice English often , and you will improve it .

If you practice English often , you will improve it .

Unless you practice English often , you wont improve it .

you will fail the exam ... you study hard.

a. when  b. if  c. if not  d. unless

Bạn ơi lần sau bạn gộp lại thành 1 vài câu rồi đăng chứ đừng đăng lẻ như này để tránh loãng câu hỏi nhé

D nha

....... you don't practice speaking every day, you can't improve your English

........ study hard, you will fail in the next exam

....... you don't water them

.......you don't study hard, you will fail in the next exam

......... keep calm, you can pass your driving test

Revise the lesson carefully or you will fail the exam

C1: If..you don't revise the lesson carefully, you will fail the exam...

C2: Unless...you revise the lesson carefully, you will fail the exam...

Giúp mik vs 

1. Unless you study harder, you will fail the test. 

If you don't study harder, you will fail the test.

2. Unless they return our money by the end of this week, we will go to their office.

If they don't return our money by the end of this week, we will go to their office.

3. He will be mad for at least a week unless she apologizes right away.

If she doesn't apologize right away, he will be mad for at least a week.

4. Unless he completes this task, he will have to go home late.  

If he doesn't complete this task, he will have to go home late.

5. They won’t respect you unless you respect them. 

If you don't respect them, they won't respect you.

6. If you don’t study harder, you‘ll fail the test

➡ Unless you study harder, you'll fail the test.

7. If she doesn’t practice writing every day, she can’t improve her writing skills.

➡ Unless she practices writing every day, she can't improve her writing skills.

8. Unless this man is a professional driver, he can’t help you move by car.

➡ If this man isn't a professional driver, he can't help you move by car.

9. Unless you stop smoking, you might fall ill.

➡ If you don't stop smoking, you might fall ill.

10. If Lan doesn’t return this book to the library today, she will have to pay a fine.

➡ Unless Lan returns this book to the library today, she will have to pay a fine.