1. This hammer is used ____ the glass in case of emergency. A. to break B. for break C. breaking 2. A stethoscope is applied ____ the blood pressure of patients. A. for measure B. to measure C. in measure 3. Insulin was introduced by scientists from the University of Toronto ____ diabetes. A. to manage B. for management C. for manage 4. You can use a jet ski ____ on both land and water. A. travel B. for travelling C. to travelling 5. The cat is used ____ in the yard in the afternoon. A. for lying B. to lie C. to lying 6. Don't wear high heels ____ a long distance, they can hurt your feet. A. for travelling B. to travelling C. travel 7. Remember to use sun cream ____ getting sunburn. A. to avoid B. for avoid C. avoiding 8. Doctors make use of anesthetic ____ pain for patients during surgery. A. relief B. to relieve C. for relieve

Tìm x,y để : xy/║x-y║ là số nguyên tố (xy là số có 2 chữ số )

Giúp mk với........................... Dễ lắm

Các bạn giúp mình với ạ, mình cảm ơn

1.As the storm started, we went towards the old house. (direction) As the storm started, we went........................................... the old house. 2.We drove away as fast as we could, ready to begin our adventure. (full) We drove away........................................................... , ready to begin our adventure. Dùng từ gợi ý viết lại câu

vẽ cho mình jung kook BTS và các thành viên khác đang chúc mừng sinh nhật kook ( phải có bánh kem , nếu có màu thì càng tốt )

1. I ____ this washing machine for five years now. It looks old, but it still works well. A. have B. had C. is having D. have had 2. Have you ever read the Wuthering Heights? - Oh. That's my favourite. I ____ it many times, at least four. A. read B. have read C. was reading D. used to read 3. People's lives ____ a lot thanks to the inventions of these devices. A. was changed B. has been changed C. have changed D. is changed 4. She ____ volleyball at high school but she didn’t like it. A. has played B. played C. was playing D. has been playing 5. The first actual robot ____ invented in 1961. A. was B. has been C. used to D. were 6. Where do you live? – I ____ in Boston. I ____ there for ten years now. A. live – have lived B. live – am living C. have lived – live D. live – live 7. Until now, the disease ____ over thirty thousand people worldwide. A. has killed B. killed C. kills D. is killing 8. Liverpool football club ____ 18 Premier League titles so far. A. won B. used to win C. win D. has won 9. I'm sorry. Mark isn't here now. He ____ to the post office. A. went B. goes C. has been D. has gone 10. ____ you ____ the shoplifter to the police yet? A. Do – report B. Have – reported C. Are – reporting D. When – reported

Tìm x,y nguyên biết y ² - 3x ² + 2xy + 8x -9 = 0

Ba tổ công nhân có mức sản xuất tỉ lệ với 5,4,3 . Tổ 1 tăng năng xuất 10%, tổ 2 tăng năng xuất 20%, tổ 3 tăng năng xuất 10%. Do đó, cùng 1 thời gian tổ 1 làm nhiều hơn tổ 2 là 7 sản phẩm. Tính số sản phẩm mỗi tổ đã làm trong thời gian đó.

Cho m gam Mg pứ hết với hh dd H2SO4 loãng và KNO3 thu 1,12l hh 2 khí đơn chất có tỉ khối so với hidro là 8,8.Tìm m