- Cho 2 nguyên tố A, B đứng kế tiếp nhau trong bảng tuần hoàn có tổng số n + l bằng nhau
- Cho các phát biểu sau: (a) Cho Ba vào dung dịch H2SO4 loãng, thu được chất kết tủa
- Cho 2,16 gam Mg tác dụng với dung dịch HNO3 (dư). Sau khi phản ứng xảy ra hoàn toàn
- Cho biết năng lượng liên kết H – H là 436 kJ mol^-1. Hãy tính năng lượng cần thiết (theo eV)
- Cho biết nguyên tử của nguyên tố A có tổng số hạt là 58, số khối của nguyên tử nhỏ hơn 40
- Cho biết nguyên tử khối trung bình của Iriđi là 192,22. Iriđi trong tự nhiên
- Cho sơ đồ phản ứng sau: K + O2 → K2O. a. Lập phương trình hoá học
- Cho cacbon tác dụng với một lượng HNO3 đặc nóng vừa đủ. Sản phẩm là hỗn hợp khí X
- Some regions in Central Highlands in Viet Nam are not ___. (populate)
- The ....... students often play soccer or baseball. (energy)
- Nam .......................... swimming twice a week. A. is going often
- "Why don't we go out for dinner tonight?" said Jim. A. Jim denied going out for dinner that night
- Giving lucky money to children and the elderly is one of the most common ________ during the Lunar New Year
- “How long have you lived here, Lucy?” asked Jack
- If I take the job, I’ll have to move to London. (MEAN) => Taking the job ……….. London
- That's the best meal I've eaten. A. I've just eaten a better meal
- In many developing countries, water pollution is usually a leading cause of _________
- Where’s your mum? – She (water) the plants in the garden
- Tìm và sửa lỗi sai: The man was unable discovering who had thrown stones at him
- Viet Nam has abundant mineral water sources, ______ throughout the country
- Christopher Columbus was an Italian ________ who discovered America
- Laos has a low population density, unspoiled diverse ethnic lifestyles, and perhaps the richest
- not have/credit card/ find/difficult/ book/airline ticket/online
- Have you ever ______ a horse
- Entering the room, I was surprised at what I saw
- He loves books. He _____ them every day
- He didn't stop his car ________ the traffic lights turned red
- He usually worn a pair of glasses
- I checked the answers. Two of _______ were wrong
- I don't like airplane food. It's so ______ (taste)
- If I study, I _____ (pass) the exams
- The Internet can be a source of information. It can also be a source of entertainment
- The longest fish in the contest was eighteen inches long. It _____ by Thelma Rivers
- Last month, I _______ (join) a course to learn how to make Christmas decorations
- Whiting house is an important local monument. It was built in 1856
- Just think, ______ 2 years' time, we'll be 20 both
- Ann's having a lot of trouble because she lost her passport last week
- Viết về ngày cuối tuần của bạn bằng tiếng Anh
- A. carnival B. festival C. holiday D. Thanksgiving
- During their concert, Coldplay stirred up the crowd in nearly 3 hours with their hit songs.
- He does anything. He always tries his best. (no matter)
- He doesn't get on well with his colleagues (terms)
- He studied very well though his life was hard at that time
- His life is hard. He determined to study well. (no matter)
- A. honesty B. enhance C. helicopter D. husband
- "How do you go to the airport?", his friend asked him
- I can't jump any ______. (HEIGHT)
- I gave Ted the massage, but he already knew about it. (needn’t)
- “I have something to show you now.”, he said to me
- I have something to show you, I said to her
- I wish I _______ you tomorrow, but it's impossible
- if/ look after/carefully/ plant/survive/ summer
- It's three years _______ your brother
- My father (work) ______ for this company since he (graduate) ______ from his university in 1999
- prevent education dependent eliminate
- Since he (read) _________ the book, he (become) ________a fan of the author
- "Stop talking, Joe," the teacher said
- Mexico City, ______ is the fastest-growing city in the world, has a population of over 10 million
- “You work too hard" - The doctor said to him
- The firm gave me a rise after I had worked there a year (raised)