Task 11:

1. If she should come, tell her to wait for me.

-> Unless she should come, don't tell her to wait for me.

Unless = If not

2. If I don't come here early, I will miss the bus.

-> Unless i come here early, I will miss the bus.

Unless + S + V (thì hiện tại đơn), S + will/ shall/ can + V…

3. If he doesn't do that, he will get bonus.

-> Unless he does that, he will get bonus.

Unless + S + V (thì hiện tại đơn), S + will/ shall/ can + V…

4. If she doesn't water these trees, they will die.

-> Unless she waters these trees, they will die.

Unless + S + V (thì hiện tại đơn), S + will/ shall/ can + V…

5. I only come if they invite me.

-> Unless they invite me, I won't come.

Unless + S + V (thì hiện tại đơn), S + will/ shall/ can + V…

6. In case it rains, we'll stay at home.

-> If it rains, we'll stay at home.

 If + S + V(s,es), S + Will/Can/shall…… + V

7. If you don't leave the office, I will call the police.

-> Leave the office or I will call the police.

8. You can't visit Paris unless you get a visa.

-> If you don't have a visa, you can't visit Paris.

 If + S + V(s,es), S + Will/Can/shall…… + V 

Task 12:

1. Fred will answer his phone if his wife has a bath.

2. If Claire wears this dress at the party, our guests won't stay any longer.

3. If i touch this snake, my girlfriend won't scream.

4. She will forget to pick you up if you don't phone her.

5. I will remember you if you give me a photo.

Cấu trúc: 

If + S + V(s,es), S + Will/Can/shall…… + V 

S + Will/Can/shall... + V + if + S + V(s/es)....

Task 13:

1. If I study, I will pass the exams.

2. If the sun shines, we will walk into town.

3. If he has a temperature, he will see the doctor.

4. If my friends come, I will be very happy.

5. If she earns a lot of money, she will fly to New York.

6. If we travel to Hanoi, we will visit the museums.

7. If you wear sandals in the mountains, you will slip on the rocks.

8. If Giang forgets her homework, the teacher will give her a low mark.

9. If they go to the disco, they will listen to loud music.

10. If you wait a minute, I will ask my parents.

 Cấu trúc: If + S + V(s,es), S + Will/Can/shall…… + V 

Đáp án + Giải thích bước giải:

Task 11:

* Unless + S + Vs/es, S + will/shall/can + V0 + ...

* Unless = If not: trừ khi

1. Unless she should come, don't tell her to wait for me

2. Unless i come here early, I will miss the bus

3. Unless he does that, he will get bonus

4. Unless she waters these trees, they will die

5. Unless they invite me, I won't come

_______________________________________________________________

* Câu điều kiện loại 1: If + S + V(s/es), S + will/can/shall... + V0 + ...

6. If it rains, we'll stay at home

7. Leave the office or I will call the police

→ liên từ nối "or" dùng giới thiệu ra một lựa chọn, một khả năng mới

8. If you don't have a visa, you can't visit Paris

___________________________________________________________________________

Task 12 + Task 13

* Câu điều kiện loại 1: If + S + V(s/es), S + will/can/shall... + V0 + ... (có thể đảo mệnh đề if ra sau)

1. Fred will answer his phone if his wife has a bath

2. If Claire wears this dress at the party, our guests won't stay any longer

3. If i touch this snake, my girlfriend won't scream

4. She will forget to pick you up if you don't phone her

5. I will remember you if you give me a photo

Task 13:

1. If I study, I will pass the exams

2. If the sun shines, we will walk into town

3. If he has a temperature, he will see the doctor

4. If my friends come, I will be very happy

5. If she earns a lot of money, she will fly to New York

6. If we travel to Hanoi, we will visit the museums

7. If you wear sandals in the mountains, you will slip on the rocks

8. If Giang forgets her homework, the teacher will give her a low mark

9. If they go to the disco, they will listen to loud music

10. If you wait a minute, I will ask my parents