1. Mary typed letters in the office. …………………………………………………………….. 2. His father helped you every day……………………………………………………….. 3. Science and technology changed human life. ………………………………………………………………………………….. 4. Peter broke this bottle. ………………………………………….. 5. They learned English in the room. ………………………………………………………………………………….. 6. He changed my mind.……………………………………………………….. 7. She tells me about it . ………………………………………………………………………………….. 8. I didn’t know her telephone number ………………………………………………………………………………….. 9. My students brought the children home. ………………………………………………………………………………….. 10. They sent me a present last week. …………………………………………………………………………………..

($\dfrac{1}{\sqrt{x}-1}$`-`$\dfrac{1}{\sqrt{x}}$):($\dfrac{\sqrt{x}+1}{\sqrt{x}+3}$+$\dfrac{\sqrt{x}+3}{\sqrt{x}-1}$) a)rút gọn b)tìm gtri A<0

Mọi người cho mình hỏi khi nào dùng động từ tobe khi nào dùng do,does trong câu hỏi vậy ạ

Vẽ đậu mầm NL: Trưa nay Dách được lên chuyển động 24h rồi đấy mấy bạn bảo thủ ạ:vvvv

Tìm từ tượng hình, tượng thanh và nêu tác dụng trong câu: "Đùng đùng cai lệ giật phắt cái thừng trong tay anh này và chạy sầm sập đến chỗ anh Dậu."

11. The man could give no......... for his violent behavior. (EXPLAIN) 12. I know all the boys who live in my................ (NEIGHBOUR) 13. He does not agree with the..... that there is life on other planets. (BELIEVE) 14. A letter should always end with the...... of the writer. (SIGN) 15. There is a great..... between Hari and his twin brother. (SIMILAR)

Cho M=( √x/x-4 +1/ √x -2) . √x - 2/2(x >= 0;x khác 4) Rút gọn biểu thức M

II. Give right word formation of these following words 1. Will you please give us some ......................... explanation? (far) 2. You should........................ yourselves with the new environment. (family) 3. She likes going ................. ....... with her classmates. (picnic) 4. Are there any.................... ....... between them?(similar) 5. There're many ................ ..... programs at the Festival in hue. (Culture) 6. Although some societies are........... .........undeveloped, their languages are very complex. (technology) 7. It's education that helps with the...........................of knowledge for the young (rich) 8. He likes watching............................ programs on TV(entertain) 9. Many........................ say that is the best method to adopt(science) 10. Esperanto, however, proves to be useless because it's.................... .........(popular)

Giúp mình với đúng mình vote 5* ạ

giải nhanh giúp mình với ạ , sẽ cho 5* và tlhn cả 2 bài nhé