1. It's difficult study in a foreign country, so students need to prepare for the experience. A B C D 2. I’m tired of being told what writing about tram system in Hanoi. A B C D 3. It’s convenient of us to take a cyclo and observe life in Ho Chi Minh City. A B C D 4. I had just finished my meal when he had called me out for dinner. A B C D 5. I was surprising to learn that there was a tram system in Hanoi a century ago. A B C D

1. There are some one following us. I think we________ in this area. A. are following B. are followed C. follow D. are being follow 2. Our teacher made us________ harder. A. working B. to work C. work D. works 3. She went to market without ____________ anything. A. buy B. to buy C. bought D. buying 4. - Carol: "Let's have a pizza." - Cook: "___________." A. Not again B. It doesn't matter C. It’s a good idea D. Not really hãy giải thích

Các anh não to ơi, giúp em với ạ :<< please Cho vật sáng AB có dạng đoạn thẳng và 1 thấu kính hội tụ có tiêu cự f=20cm. 1.Đặt vật AB vuông góc với trục chính của thấu kính, A nằm trên trục chính và nằm khoảng ngoài tiêu cự. Vật AB cho ảnh A'B' qua thấu kính. ->Vẽ hình. (cái này em làm dc rùi ạ :v) ->Chứng minh biểu thức: AF.A'F'=OF.OF' với F,F' là các tiêu điểm của thấu kính.

1. The school ………………….. by paddy fields. A. was initially surrounding B. initially was surrounding C. was initially surrounded D. initially was surrounded 2. There has been a ……………….. increase in people’s income over the last ten years. A. gradual B. gradually C. slightly D. dramatically 3. A ………………….. is a bridge that carries one road over another one. A. tram B. sky-train C. flyover D. tunnel 4. She lived in a(n) ………………….., so she didn’t have much privacy. A. nuclear family B. extended family C. family nuclear D. family extended 5. We live in a(n) ………………….. with only my parents and me. A. nuclear family B. extended family C. family nuclear D. family extended 6. ………………….. used to be an image associated with our soldiers in the past. A. Leather shoes B. Rubber sandals C. Boots D. Sneakers 7. It is said that Edinburgh ………………….. the most historic city in Great Britain. A. are B. to be C. be D. is 8. Many scientists suggest that the government ……… strict laws to control deforestation. A. applied B. applying C. should apply D. applies 9. Everyone was ……… that the government had decided to invest more in education. A. sorry B. confident C. glad D. afraid 10. 15 years ago, when I came back, the city …………… with 800,000 motorbikes and two million bicycles on the roads. A. had dramatical changed B. had dramatically changed C. dramatical had changed D. dramatically had changed

Cho a = 5 mũ 2 . Tập hợp các ước của a là a, { 5 } B, { 1;5 } C, { 1;2;5 } D, { 1;5;25 }

Giúp mình với ạ^^Mình cảm ơn ạ!

vẽ anime/chibi/mầm ạ NL:khi vk giận thì phải làm sao akT-T tui khổ vs con em quá mà

làm 1 trong 3 bài có gt , kl , hình

Mn giúp em vs ạ hứa cho vote+5sao

Vì sao nói Vũ Nương là người con dâu hiếu thảo trọn đạo với mẹ chồng ( đoạn văn 15 - 20 dòng )