31. A. sneakyB. floppyC. icingD. embrace 32.A. loyaltyB. constancyC. acquaintanceD. confidence 33.A. gossipB. interestC. betweenD. friendship 34.A. unselfishB. sympathyC. qualityD. principle 35.A. mutualB. advantageC. possibleD. generous 36. A. helpfulB. sincereC. pleasantD. earning 37.A. floppyB. idolC. cottonD. decide 38.A. extremelyB. excitedC. personalD. imagine 39.A. birthdayB. replyC. schoolbagD. money 40.A. celebrateB. togetherC. familyD. special 41.A. successfulB. beautifulC. humorousD. difficult 42.A. coupleB. weddingC. quietD. receive 43.A. beginB. silverC. dinnerD. people 44. A. celebrateB. attitude C. refreshments D. restaurant 45. A. problemB. enoughC. listenD. summer

1. There are four _____in my house. bookshelf 2. The photocopy is between the _____ and the drugstore. bake 3. Is your brother an_____? act 4. Mai's sister is a ______ sing 5. We must be ____ when we cross the road. care 6. This tree has a lot of green _____ leaf 7. Is your father a ______ ? business 8. I’m Vietnamese. What’s your ______ ? nation 9. Air _____is a big problem in many cities in the world. pollute 10. Yoko is from Japan. She is _____ Japan

Mn ơi giúp mình với... tóm tắt đề bài cho mình hiểu dùm nhoa

1. There are four _____in my house. bookshelf 2. The photocopy is between the _____ and the drugstore. bake 3. Is your brother an_____? act 4. Mai's sister is a ______ sing 5. We must be ____ when we cross the road. care 6. This tree has a lot of green _____ leaf 7. Is your father a ______ ? business 8. I’m Vietnamese. What’s your ______ ? nation 9. Air _____is a big problem in many cities in the world. pollute 10. Yoko is from Japan. She is _____ Japan

m là tham số thực có nghĩa là m thuoccj tập số thực đúng ko mọi người

giai nhanh giup minh voi minh cho 5 sao

TÍNH NHANHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

Phân tích đa thức thành nhân tử 27$y^{3}$ - 9$y^{2}$ + y - $\frac{1}{27}$

Ngoi lên đặt câu hỏi xí :V Vẽ anime / chibi zui zẻ >< NL : mới đc vô BĐHH zui qué >~<

Hai địa điểm AB cách nhau 15km. Cùng một lúc có hai xe chạy cùng chiều nhau theo hướng từ A đến B. Sau 2h thì hai xe đuổi kịp nhau. Biết xe đi qua A có tốc độ không đổi là 50km/h. Xe đi qua B có tốc độ bằng