Với vận tốc 11.000km/1h thì trong vòng bao nhiêu phút đi hết được quãng đường dài 1700km?

Change these sentences into the passive voice Part A. Present Perfect tense 1. Pollution from factories has destroyed many lakes and rivers. ....................................................................................................................................................... 2.My brother hasn’t finished his exercises. ....................................................................................................................................................... 3. They have discovered oil at the North Pole.  ...................................................................................................................................................... 4. Nam’s father has just bought another villa.  ...................................................................................................................................................... Part B. Modal verbs 5. Some people will interview the new president on TV.  ...................................................................................................................................................... 6. They can’t hold the seminar in the hall.  ...................................................................................................................................................... 7. Tom has to pay the bill before the second of the month.  ...................................................................................................................................................... 8. They should send it to us immediately.  ......................................................................................................................................................

Bài 5: Cho tam giác ABC nhọn nội tiếp (O), đường cao AD, BE của tam giác cắt nhau tại H. AD cắt đường tròn tại I. C/m: DH= DI giúp tui với, tui nghĩ hoài mà k đc helpp

Câu 12 cho Flo Clo Brom Iot lần lượt tác dụng với H2 phản ứng giữa halogen nào xảy ra mãnh liệt nhất A F2 B Cl2 C Br2 D I2

Nêu tác dụng chính của dòng điện trong những dụng cụ dùng điện sau: Đèn dây tóc, cần cẩu điện, mạ Niken, bàn ủi, máy kích tim. mK đang cần gấp

So sánh các câu sau đây 1 chồng tôi đau ốm, ông không được phép hành hạ! 2 chồng tôi đau ốm, ông đừng hành hạ! 3 chồng tôi đau ốm, xin ông chớ hành hạ! a) xác định sắc thái mệnh lệnh trong các câu trên b) các câu nào có tác dụng nhất? Vì sao?

Câu 11 phản ứng giữa hyđro và chất nào sau đây thuận nghịch A Iot B Brom C Clo D Flo

I- Put each verb in bracket into a suitable tenses or forms(5pts) 1- It’s a pity you missed the party. If you (come).........................you (meet) ......................... my friend from Hungary. 2- If we (have) .........................some tools, we (be) .........................able to repair the car, but we haven’t had any with us. 3. Fish and many animals are killed by .......................... in their habitat. (pollute) 4- It’s a beautiful house, and I (buy) .........................it if I (have) .........................the money, but I can’t afford it. 5. In many developing countries, water pollution is usually a leading cause of ......................... (die) II- Rewrite each sentence, beginning as shown(5pts) 1. I’ll call the police if you don’t leave me alone. Unless........................................................................................................................................ 2. It’s a shame we don’t have a TV. I wish......................................................................................................................................... 3. Aquatic life suffers to dies because there is thermal pollution. Because of................................................................................................................................ 4. There are asthma, allergies and other respiratory illnesses when air pollution happens. (leads to) .................................................................................................................................... 5. Make me some coffee, and I’ll give you some sweets. If..........................................................................................................................................…

Câu 10 axit Flohyđric không tác dụng với A SiO2 B CaO C KOH D AgNO3

I. Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage. When visitors join in a (1) of the Mekong Delta, they can visit Cai Rang Floating Market to see the river life. Cai Rang Floating Market is (2) all day but it is busiest from sunrise to about 9 a.m. The main items (3) there are farm products and specialities of neighbouring areas. During the early morning market hours, larger sized boat anchor and create lanes so that (4) boats can move into and out of. The waterway becomes a maze of hundreds of boats packed with mango, bananas, papaya, pineapple, and other goods. Sellers do not have to (5) their goods because their goods can be seen (6) and their cries would not be heard in the vastness of the river and the noise of boat engines. Sellers tie their goods to a tall pole (7) buyers can see from a distance (8) they are selling. Each boat is loaded with plenty of seasonal goods. Activities at the market are also a(n) (9) for tourists to study the cultural (10) of southerners. 1. A.tour B.trip C.voyage D.travel 2. A.to open B.open C.opened D.opening 3. A.sell B.are selling C.selling D.sold 4. A.no B.bigger C.smaller D.the same 5. A.cry B.cry out C.cry outfor D.advertise 6. A.within distance B.in the distance C.in a distance D.by some distance 7. A.therefore B.but C.so that D.although 8. A.how far B.why C.how D.what 9. A.occasion B.event C.reason D.experience 10. A.appearances B.aspects C.guides D.subjects