I-Choose the best option to complete each of the following sentences.

1.      They shouted and looked ________at me when I broke the vase.

           A. angry                          B. angrier                          C. angrily                            D. anger

2.      He is tired, ________he stayed up late watching TV.

           A. so                                B. because                        C. but                                   D. and

3.      We are talking about the preservation of ________resources.

           A. natural                        B. naturally                       C. nature                              D. naturalize

4.      Is he really ________that you can’t come there?

           A. disappoint                  B. disappointed                C. disappointing                 D. to disappointing

5.      It is our policy to ________forest and increase forestation.

           A. protect                        B. protecting                     C. to protect                        D. protected

6.      I suggest ________to the movies.

           A. go                                B. to go                              C. going                               D. went

7.      They made their living by ________fish in the ocean every day.

           A. catch                           B. catching                        C. to catch                           D. caught

8.      I will be ________if she manages to sell that motorbike at a high price.

           A. surprise                      B. surprised                      C. suprising                         D. to surprise

9.      If you know where she lives, please let me ________.

           A. know                           B. knew                             C. known                             D. to know

10. If you live in this small town, you ________earn much money.

           A. aren’t                          B. couldn’t                        C. can’t                                D. didn’t

11. Unless you understand, I ________explain it again to you.

           A. am                               B. was                                C. will                                  D. would          

12. If he ________a student, he will get a discount.

           A. is                                 B. was                                C. were                                D. will be

13. Because plastic bags are very hard to ________, they will cause pollution.

           A. dissolve                      B. wrap                              C. tear                                  D. collect

14. These materials can be ________into other packaging products.

           A. reused                         B. reduced                        C. removed                         D. recycled

15. If people ________public transport, there will be less pollution.

           A. use                              B. will use                         C. can use                            D. used

16. Minh’s English is excellent. He speaks ________.

           A. perfectly English      B. English perfectly        C. in perfect English          D. English perfect

17. If you go ________doing that, you’ll end ________ in serious trouble.

           A. up/ with                      B. on/ up                           C. off/ with                          D. out/ up

18. Crops are sprayed with ________to kill insects.

           A. fertilizer                     B. manune                         C. dung                                D. pesticide

19. What about ________used paper, bottles, and cans every day?

           A. collect                        B. collecting                     C. to collect                        D. to collecting

20. If the sea water continue to be polluted, many fish species ________extinct.

           A. became                       B. will become                 C. would become               D. become

Xét​ tam giác​ ABC câ​n tại​ A có: 

<B=<C=50 đ​ộ

=> <A= 180 đ​ộ​ -(<B+ <C)( Tổng​ 3 góc​ trong của​ tam giác​)

=> <A= 180 đ​ộ​ -2.50 đ​ộ​= 80 đ​ộ

P/S: cái​ "<" là​ chỉ​ góc nha bn

My favorite website is Google. I liked it because it is very useful for me. Google LLC is an American multinational technology company, specializing in Internet-related products and services, including online advertising technologies, search engines, cloud computing, software and Hardware. This is considered one of the Big Four technology companies, along with Amazon, Apple and Facebook.Google was founded in 1998 by Larry Page and Sergey Brin while they were PhD students at Stanford University in California. Google.com is the most visited website in the world. Several other Google services are also in the top 100 most visited websites in the world, including YouTube and Blogger. Google is the world's most valuable brand as of 2017 but has received considerable criticism regarding issues such as privacy concerns, tax avoidance, antitrust, censorship and neutrality in search. When i use google i can ask about my homework. My teacher also said: "When you don't know the answer, check Google". ​Through here, we have seen the benefits of Goolgle. Google is beneficial but also harmful, that is, there are many harmful pages that make our computer infected with viruses.

1. It takes only half an hour for us to get to the art gallery

2. Her book is different from mine

3. My brother enjoyed playing the piano when he was very young

​4. It takes only half an hour for us to get to the art gallery.

​5. A new school is going to be built here next year.

1. We often clean and decorate our houses at Tet.

………………Our house is often cleaned and decorated (by us) at Tet……………………………………………….

2. My mother donates old clothes and food to the poor every year.

………………………Old clothes and food are donated to the poor by my mother every year……………………………………….

3. We usually plant trees when spring comes.

………………………Trees is usually planted when spring come……………………………………….

4. Last year my family didn’t wrap Chung Cakes.

…………………………Chung Cakes weren't wrapped by my family last year…………………………………….

5. Do you paint your house to welcome Tet?

……………………Is your house painted to welcome tet ?………………………………………….

6. We don’t do exercises during Tet holiday.

………………………Exercises aren't done during Tet holiday……………………………………….

7. They sang a lot of beautiful songs in this place two days ago.

…………………………………A lot of beautiful songs were sung in this place two days ago …………………………….

8. I didn’t watch 7 o’clock news last night. 

…………………7 o'clock news wasn't watched by me last night…………………………………………….

9. Did her mother buy her new clothes yesterday?

……………………………Were her new clothes bought by her mother yesterday?………………………………….

10. We visited our teacher last year but this year we won’t.

……………………Our teach won't be visited by us this year………………………………………….

11. Do you wash your clothes on your own?

……………………… are your clothes washed on your own? ……………………………………….

12. Did he collect all the empty plastic bottles on the floor?

………………………………Were all the empty plastic bottles on the floor  collected by him?……………………………….

13. He brushes his teeth three times a day.

…………………………his teeth are brushed three times a day…………………………………….

14. Some bad people cut down four precious trees in my garden last week.

……………………four precious trees in my garden were cut down by some bad people last night………………………………………….

15. My grandmother often told me stories before I went to bed.

……………………I was often told stories by my grandmother before I went to bed………………………………………….

16. The carpenter made this chair for me.

………………………this chair was made for my by the carpenter……………………………………….

17. Designers design beautiful houses.

…………………………Beautiful houses are designed by designers…………………………………….

18. We studied passive voice in the first semester.

…………………………Passive voice was studied by us in the first semester…………………………………….

19. I help my parents prepare meals every day.

………………………My parents are help to prepare meals every day……………………………………….

20. They don’t eat fish and pork for lunch.

…………………Fish and pork aren't eaten for lunch…………………………………………….

S = 1 - 3 + 5 - 7 +....+ 2021 - 2023

 = (1-3) + (5 - 7) + ... + (2021 - 2023) (có 506 nhóm)

= (-2) + .. + (-2) có 506 số hạng

= (-2). 506 = - 1012

IV. Choose the correct answer from A, B, C to complete the passage.

We all want to be (1) _________ but many of us don’t know how to keep fit. We just do anything we (2) _________  without knowing that something we do may be harmful to our health. Here are some advice for you: Get up (3) _________ every morning and don’t stay up late. And remember to do morning exercises. Eating too much candy is not good (4) _________ your teeth, so keep away from candy and brush your teeth at least twice a day. You (5) _________ lie and watch TV all day because you can be fatter. And remember to wash your hands before meals.

1.         A. health                    B. healthy                              C. healthful

2.         A. like                         B. likes                                   C. liked

3.         A. late                         B. soon                                  C. early

4.         A. for                          B. to                                        C. at

5.         A. aren’t                     B. shouldn’t                           C. oughtn’t

1.     My uncle’s hobby is_________coins. He has a lot of coins.

A. doing                     B. collecting                          C. making                 

2.     My uncle_________ his hobby when he was ten years old.

A. start                                    B. starts                                  C. started                    

3.     My aunt _________in this school for nearly twenty years.

A. teaches                 B. has taught                        C. teaching              

4.     If you want to avoid catching flu, you must wash you hands_________.

A. more                      B. less                                     C. few                        

5.     His health will be better if he eats less _________ food.

A. healthy                  B. unhealthy                         C. health

6.     Students in our school often_________money to donate the people in the flooded areas.

            A. raise                      B. rise                                     C. collect                     

7.      People who do not have houses to live are called ______ people.

A. homeless              B. homely                              C. housework                      

8.     - Daisy: “It’s raining outside but I must go out now.”           – Mary: “______.”

 A. Wear a hat                       B. Wear a raincoat               C. Take off your coat

9.     - Daisy: “I had an allergy last week.”                         – Mary: “__             A. Oh, good               B. Oh, how interesting        C. Oh, dear. I didn’t know that

10.  The cleaning-up-street activity is not _________ we thought at first.

      A. the easiest                        B. easier                                C. as easy as         

1. I like listening to classical music

My favorite kind of music is classical.

2. What’s the matter with you?

How do you feel ?

3. How does she feel?

What’s the matter with her ?

4. She likes winter best

Her favorite season is winter.