user-avatar
admin
2 năm trước
Bài 1. Viết kí hiệu của nguyên tử X trong các trường hợp sau đây : a. Có 13 electron và 14 nơtron b. Tổng số hạt proton và notron là 26 , hiệu số hạt notron và proton là 2
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Complete the second sentence so that it has a similar meaning to the first sentence, using the word given. Do not change the word given. You must use between three and six words, including the word given. a) Some TV programmes are such rubbish. (use MAKE) I wish they ____________________ TV programmes b) They didn’t sign the contract so they lost their best customer. (use NOT) Had they ____________________ have lost their best customer. c) The children took the game out of its box and immediately started arguing about who would play first. (use HARDLY) ____________________ the game out of its box when they started arguing about who would play first. d) Over the next few decades people think that there will be treatments for many more diseases. (use THAT) It ____________________ diseases will be treatable in the coming decades.

Bài 4: Hãy chọn câu trả lời đúng cho các câu sau 1. I______ know the correct answer. A. am not B. not C. don’t D. doesn’t 2. They ______ agree with my opinion. A. are B. don’t C. aren’t D. do 3. Kathy usually ______ in front of the window during the class. A. sits B. sitting C. sit D. is sit 4. What does this word ______? A. means B. meaning C. mean D. is mean 5. He ______ share anything to me. A. don’t do B. isn’t C. not D. doesn’t 6. I come from Canada. Where ______you come from? A. are B. do C. is D. not 7. Jane ______ tea very often. A. doesn’t drink B. drink C. is drink D. isn’t drink 8. How often ______ you play tennis? A. do B. are C. is D. play 9. Rice ______ in cold climates A. isn’t grow B. don’t grow C. aren’t grow D. doesn’t grow 10. I ______ a compass and a calculator in Maths lesson. A. am use B. use C. aren’t use D. doesn’t use

IV. Change into passive from 1. Someone might steal your bike if you leave it outside. ……………………………………………………………. 2. You ought to knock down the old building. ……………………………………………………. 3 People don’t use this dictionary very often. ………………………………………………. 4. They told me that our teacher was sick. ……………………………………………….. 5. Mr Nam has just painted a beautiful picture . …………………………………………………… V. Rewrite the following sentences without changing the meanings 1. I hope to receive a letter from my parents. I am looking ............................................... 2. She helps me do all difficult exercises. I ................................................................. 3. This city had old building, but none can be found nowadays. There used ................................................................................... 4. When did your father begin to work in this company? How long ......................................................................? giúp mik vs mik cần gấp ạ

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team