Số đồng phân amin bậc 1 có cùng công thức phân tử C₅H₁₃N là

A. 6. 

B. 9. 

C. 7. 

D. 8. 

1. What/ you/ want/ buy/ you/ Mum?

- What do you want to buy for you, Mum?

2. Nga/ would/ dozen/ oranges/ kilo/sugar.

- Nga would buy a dozen of oranges and a kilo of sugar

3.Nga/ have/ small/ field/ and/ grow/ vegetables/ flowers.

- Nga has a small field and grows vegetables and flowers

vt lại câu giữ nguyên nghĩa :

1.the cuontry is great-> it's a great country

2.the work is very hard and he can't do it -> this work is too hard for him to do

3.mr.minh has a daughter ,Lan -> mr.minh is Lan's father

4. what is the width of this river?-> how wide is this river?

We like hot weather because we can go swimming

6, We/ delighted/ welcome / you / our city.

- We are delighted to welcome you to our city
7, She / glad / receive/ hẻ father's letter

- She was glad to receive her father's letter
8, I sorry / hear/ news

- I'm sorry to hear the news
9,I pleased / see/ you/ again

- I'm pleased to see you again
10, I delighted / get / your letter/ yesterday

I was delighted to get your letter yesterday
11, Your old friends / surprised

- Your old friends were surprised

1. I am thirsty (drink some orange juice)

- Let's drink some orange juice

or What about drinking some orange juice?

or Why don't we drink some orange juice?

2, Lan's mother is not fine (visit her)

- Let's visit her mother

or What about visiting her mother?

or Why don't we visit her mother?

3. The beach is very beautiful. (take some photos)

- Let's take some photos

or What about taking some photos?

or Why don't we take some photos?

4. There 's a good movie on TV tonight (stay at home and watch TV)

- Let's stay at home and watch TV

or What about staying at home and watching TV?

or Why don't we stay at home and watch TV?

5. The weather is cool. (go camping in the countryside)

- Let's go camping in the countryside

or What about going camping in the countryside?

or Why don't we go camping in the countryside?

6. I am very tired (go to bed early)

- Let's go to bed early

or What about going to bed early?

or Why don't we go to bed early?

Put the correct form of the verbs play,do,go,watch and like in the blanks.

1, Dương can.............do..................karate

2,Duy is not reading now.He ..........is watching...............a game of tennis on tv

3,Michael .....goes.........swimming nearly every day.

4, Phong doesn't play football.He.............likes................reading books

5, Khang ..............played................... volleyball lát Saturday evening

Somebody will clean the room later

We should ues cloth bags instead of plastic bags

We can use the garbage to make fertilizer

John will collect me at the airport

You teacher must sign this from

Our from teacher will hold a class discussion next Monday

We must pay the bill at once

I will repair your bicycle tomorrow afternoon

They repaired my computer during the weekend

People said that they bought this shop last year

1.Thank you / much / your letter / arrive / few days ago.

Thanks you very much for your letter which arrived few days ago

2. It/ be/ lovely/ hear/ you

It was lovely to hear from you

3. I/ be sorry/ I/ not write/ a long time/ but I/ be very busy

I'm sorry that I haven't written for a long time but I was very busy

4. As you know/ we/ buy/ new house/ September

As you knew, we bought our new house in September

5. It/ be/ very bad condition/ and it/ need/ repair/ a lot

It was a very bad condition and it needs repairing a lot

6. We/ just / finish / most of it / and now / it / look / very nice

We have just finish most of it and now it looks very nice

7. Peter and I/ decidel give/ house-warming party/ May 3rd

Peter and I decided to give a house-warming party on May 3rd

8. You think/ you able/ come?

Do you think that you will be able to come?

9. Please give me/ ring/ and let/ know/ if you can come

Please give me a ring and let me know if you can come

10. I/ really/ look forward/ see you again

I'm really looking forward to seeing you again

.Love,

Jenny