a) In đậm

Freya: I can't find my camera, Archie.

Archie: There it is. It's under your bag. Why do you have to bring it to class?

Freya: I must take it to my photography class today. By the way, I didn't understand that email you sent

me yesterday.

Archie: I didn't send any emails yesterday.

Freya: Well, you might have sent it earlier. But I got it yesterday.

Archie: I can't have sent you an email. My phone hasn't been working for a week.

Freya: Somebody must have used your account. The email had a link to a competition, but when I clicked on it, nothing happened.

Archie: Oh no! You shouldn't have clicked on the link. You've possibly downloaded some malware onto your phone.

Freya: That's terrible! You should have warned me earlier.

Archie: I didn't know! Anyway, you might not have downloaded anything. It's possible that you were lucky. You just need to wait and see.

Freya: Anyway, you need to warn your other friends. That email could have gone to everybody in your address book!

b)

1 A hotel receptionist must be good at communication.

(Lễ tân khách sạn phải giỏi giao tiếp.)

2 You have to pay for the tickets in advance.

(Bạn phải trả tiền vé trước.)

3 Examinees must switch off all modern gadgets during the exams.

(Thí sinh phải tắt tất cả các thiết bị hiện đại trong khi làm bài thi.)

4 You must not leave litter lying around.

(Bạn không được để rác bừa bãi.)

If Lan asks her teacher, he will explain it to her

If we had some money, we would have holiday

If we have holiday, we will go to Thailand

If you don't drive carefully, you will have an accident

If Lan's parents lived near HN, she would see them on weekend

If I knew the answer, I would tell you

1.Lan will ask her teacher.He will explain it to her

=>If Lan asks her teacher, he will explain it to her

2.We don't have holiday because we haven't got any money

=>If we got money, we would have holiday

3.we will have holiday.we will go to Thailand

=>if we have holiday, we will go to Thailand

4.drive carefully or you'll have an accident

=>if you don't drive carefully, you'll have an accident

5.Lan's parente don't live near.Hanoi,so she doesn't see them on weekend

=>if Lan's parents lived near Hanoi, she would see them on weekend

6.i don't know the answer so i ean't tell you

=>if I knew the answer, I would tell you

1. infrastructure

2. city dwellers

3. roof gardens

4. skyscraper

5. urban centers

1. examined

2. treatment

3. strength

4. muscles

5. suffering from

1. examined

2. treatment

3. strength

4. muscles

5. suffering

1. You must/mustn't respect older people. You can learn some valuable lessons from them.

2. We don't have to/have to wear uniforms on weekdays. It's the rule at our school.

3. You should/mustn't ask your parents for permission if you want to colour your hair.

4. In the past, women had to/must do all house work. It was one of their duties.

1: must

2: have to

3: should

4: had to

1. cultural values

2. generational conflict 

3. common characteristics

4. traditional view

1:cultural values

2: generational conflict

3: common characteristics

4: traditional view

3.have to make

4.don't have to do

5.had to ask

6.don't have to pay

7.hadn't to go

8.has to make

9.has to drive

Do / mind / bring / me / some / water? ( Complete the sentences. Use the words given as cues).

Thêm câu này nữa nha😀

Combine these sentences using RELATIVE CLAUSE

1. Please ask them the time. The train started the trip at that time

=> Please ask them the time when the train started the trip.

2. There are many hotels. Tourists can enjoy their holiday there

=> There are many hotels where tourists can enjoy their holiday.

3. We'll take you to Dalat. You can enjoy pure air there

=> We'll take you to Dalat, where you can enjoy pure air.

4. You can't enjoy hiking in winter. Snow covers everything in winter

=> You can't enjoy hiking in winter when snow covers everything.

5. The field is very fertile. They plant potatoes in the field

=> The field where they plant potatoes is very fertile. 

6. The little girl sings beautifully. She is wearing the red dress

=> The little girl who is wearing the red dress sings beautifully. 

7. I bought some pencils. They are in different colors

=> I bought some pencils which are in different colors.

8. Most of the people are nice. They work in my office

=> Most of the people who work in my office are nice. 

9. What happened to the money? It was on my desk

=> What happened to the money which was on my desk?

10. What's the name of the scientists? He was won the Nobel Prize

=> What's the name of the scientists who won the Nobel Prize? 

Combine these sentences using RELATIVE CLAUSE

1. Please ask them the time. The train started the trip at that time Please ask them the time when the train started the trip.

2. There are many hotels. Tourists can enjoy their holiday there There are many hotels where  tourists can enjoy their holidays.

3. We'll take you to Dalat. You can enjoy pure air there We take you to Da Lat where you can enjoy pure air.

4. You can't enjoy hiking in winter. Snow covers everything in winter You can't enjoy hiking in winter when snow covers everything.

5. The field is very fertile. They plant potatoes in the field The field is very fertile where they plant potatoes .

6. The little girl sings beautifully. She is wearing the red dress 

The girl who is wearing the red dress studies English well.

7. I bought some pencils. They are in different colors I bought some pencils which are in different colours

8. Most of the people are nice. They work in my office  Most of the people who work in my office are nice. 

9. What happened to the money? It was on my desk What happened to the money which was on my desk?

10. What's the name of the scientists? He was won the Nobel Prize  What's the name of the scientists who was won the Nobel Prize? 

1: trust

2: life skills

3: self-study

4: manage

5: self-motivated