Bài tập 1. Điền ‘a’, ‘an’ hoặc Ø vào chỗ trống sao cho phù hợp. 1. _______ Earth orbits around _______ Sun. 2. _______ dogs are our best friends. 3. My mother used to be _______ most beautiful girt in her class. 4. We need to join hands to protect _______ cheetahs from extinction. 5. My foreign friend took me on a sightseeing tour around _______ town. 6. There are many festivals taking place in _______ spring. 7. Communication has never been so convenient before thanks to _______ Internet. 8. Last year, a terrible storm reached _______ Philippines. 9. Many people mistake Rio de Janeiro for _______ capital of Brazil. 10.Many people migrate to _______ US in the hope of material success. Bài tập 2. Khoanh tròn đáp án đúng. 1. Please turn off ________ air-conditioner when you leave________ room A. the - the B. a - the C. a - a D. the - a 2. Jim hasn’t found________ place to________ night. A. the - the B. a - the C. a - a D. the - a 3. Can you show me ________ way to________ post office please? A. the - the B. a - the C. a - a D. the - a 4. Mr.Smith is________ old customer of my store and he is also________ man A. the - the B. a - an C. an - a D. the - a 5. My brother has boughtme________ beautiful dress as a birthday present. A. the B. a C. an D. Ø 6. Jim is___ youngest boy of the family and this year he will go to _____ school. A.the-Ø B. a - a C. a - the D. the - a 7. There is a huge gap between________ rich and________ poor in this country. A. the - the B. a - an C. a - the D. the - a 8. Peter was in_____ hospital and yesterday we went to____ hospital to visit him. A. the - Ø B. the - the C. Ø - the D. the-a 9. My sister told me that she had met her old teacher________ day before. A. the B. a C. an D. Ø 10. Have you ever gone to________ prison to visit him? A. the B. a C. an D. Ø Bài tập 3. Điền a/an/ the/Ø vào chỗ trống sao cho phù hợp. 1. After having ________ breakfast, we went out for________ walk in________ local park. 2. Watch out! Do not sit on________ bench. It has been painted recently. 3. My father often takes me to________ cinema on________ Sunday. 4. Yesterday________ Prime Minister gave a speech in front of his people. 5. Jim is always staying in________ bed until lunch time when he doesn’t have to go to ________school. 6. The robber was sent to________ prison for five years. 7. My brother has got________ new job and in________ next few years he will live far from home. 8. Mr. Brown always water his trees in________ morning. 9. As________ little boy, I wished to be________ hero but now I just want to be________ normal personwith________ decent job. 10.Although I had worked in________ France for 3 years, I could hardly speak French.

Câu II. Chọn một phương án đùng 4, B, C hoặc D tng với từ hoặc cụm từ thích hợp để hoàn thành các cầu sau (3,0 điểm) 1. " A. Won't you go out for dinner? for dinner? C. Do you mind going for dinner? out for dinner? 2. Minh's English is excellent He speaks A. perfectly English perfectly 3. Passover is a festival people A, where 4. In order to save electricity, an ordinary 100-watt light bulb can be repliced by a(n) A. energy-saving energy 5. What A. aspect 6. Giving lucky money to the young and the old at Tet is a common A. behavior 7-"What's your address?" Avenue." A. in B. at 8. Bill warted to know A. when the exam will be taken taken "That's a good idea. B. Why don't we go out D. Could you please go B. English perfect C. English D. in perfect English is celebrated by all Jewish B. who C. what D. which bulb. B. energy-save C. saving- D. save-energy of learning English do you find most difficult? B. side C. position D. detail in many Asian countries. C. practice "We live B. culture D. tradition 23 Brookfield C, on D. to B. when will the exam be

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Chuyển đổi câu sau thành câu khác có chứa từ trong ngoặc sao cho nghĩa không đổi. They arrived safe and sound. --------> They arrived........... (kicking) Giúp mk vs :(((((

GIÚP MÌNH VỚI HWASVOTE 5 SAO x ³-27+4x ²-12=0 (2-x/2019)-1=(1-x/2020)-(x/2021)

III Now match type of pollution and its definition. 1. air pollution A. a result of using radioactive elements from atomic energy stations. 2. water pollution B. a consequence of the excess dumping of toxic waste. 3. land pollution C. a contamination of natural air with dangerous gases. 4. sound pollution D. a consequence of releasing excess heat from power plants, industries involved in metals molding, etc. 5. radiation pollution E. a consequence of the excessive and inappropriate use of artificial light. 6. thermal pollution F. a disturbance of silent environment with harsh loud noises. 7. light pollution G. a contamination of both drinking water from rivers, ponds and also sea water with large amounts of human and industrial wastes.

Cho `A=` $\overline{a129b}$. Tìm các chữ số `a,b` để `A` chia hết cho 2, 7 và 15. Giúp mình với ạ!!

2. Tìm hiểu trình tự lập luận của tác giả trong bài, và trên cơ sở đó, nêu bố cục của bài văn. 3. Đọc đoạn văn từ "Con người của Bác" đến "Nhất, Định, Thắng, Lợi !" và nhận xét về nghệ thuật chứng minh của tác giả ở đoạn văn này. Những chứng cứ ở đoạn này có giàu sức thuyết phục không ? Vì sao ? Giút mk vs

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Trong hệ oxy cho tam giác ABC cân tại A , trọng tâm G(4/3;1/3) . Phương trình BC: x-2y-4=0, pt BG: 7x-4y-8=0. Tìm toạ độ A,B,C