Tính giá trị biểu thức nhé, nhanh nhanh giúp mik

Một hộp đựng 8 quả cầu màu đỏ, 7 quả cầu màu xanh và 6 quả cầu màu vàng (chúng chỉ khác nhau về màu). Lấy ngẫu nhiên 4 quả cầu từ hộp. Tính xác suất để trong 4 quả cầu đó phải có đủ 3 màu khác nhau ?

Nhanh nhanh hộ mik nhé, cảm ơn nhiều

+ Trồng rừng, bảo vệ rừng, tác hại của việc phá rừng ảnh hưởng gì đến chúng ta...? + Vai trò chăn nuôi trong nền kinh tế nước ta + Cách phòng bệnh, chữa bệnh cho vật nuôi + Các phương pháp chế biến, sản xuất thức ăn cho vật nuôi: Thức ăn giàu chất protein, gluxit và thức ăn thô xanh. mik cần gấp

2 câu thôi nha tính máy tính cx đc

Hallo các bạn ~! Ai nói nhiều hay là đang cơ đơn vào nhóm trên fb của mình hogg ? Nhóm thân thiện hogg cục ;-; Ai vào thì cho xin in4 để tooii tagg vào nhóm chơi nka ~ Vẽ đậu mầm

1. The hotel has been demolished. We spent our honeymoon in that hotel. (WHERE) -> _________________________________________________________________________________ 2. The couple posted a Christmas present to their daughter. Their daughter lives in South Africa. (WHO) -> _________________________________________________________________________________ 3. We will have to cancel the show. We are trying to sell more tickets. (UNLESS) -> _________________________________________________________________________________ 4. I know what really happened. You do, too. (BOTH….AND -> _________________________________________________________________________________ 5. I felt he was wrong. I didn’t say so at the time. (ALTHOUGH) -> _________________________________________________________________________________ 6. Mrs. Weaver had to work full-time. She had to earn a living for herself and her family of five children. (SO AS TO) -> _________________________________________________________________________________ 7. He is a bad-tempered person. No one can work with him for long. (SUCH) -> _________________________________________________________________________________ 8. Jill has been invited to the party. Kate has been invited to the party. (WELL) -> _________________________________________________________________________________ 9. The teacher came into the room. Everyone stops talking. (WHEN) -> _________________________________________________________________________________ 10. We have seen a lot of changes. The changes are good for business. (WHICH) -> ________________________________________________________

Chuyển sang bị động : 1. He will let her go to the bus station. …………………………………………………………………… 2. Don’t let your children play with matches. …………………………………………………………………… 3. Hien let Van take her hat. …………………………………………………………………… 4. Don’t believe what he has just said. …………………………………………………………………… 5. They make the child work all day. …………………………………………………………………… 6. You have to choose the right way or you must change your direction. …………………………………………………………………… 7. Don’t let the clothes be under the hard rain. …………………………………………………………………… 8. People reported that some roads collapsed. …………………………………………………………………… 9. They were going to feed the tiger in the cages. …………………………………………………………………… 10. Tien told me to give him a hand. ……………………………………………………………………

1:Mary is the……….in her class. A:tall B: tallest C:taller D: the taller * 1 điểm A B C D 2: In Viet Nam, it is normally……………. in the South than in the North. A. hot B. hotter C. hottest D. hoter * 1 điểm A B C D 3: The food is …………… than the last time I ate it. A. badder B. bad C. worse D. worst * 1 điểm A B C D 4: Ho Chi Minh city is ………….. than Hanoi. A. big B. bigger C. biggest D. biger * 1 điểm A B C D 5: Jack is now …………….. than he used to be. A. happy B. happier C. happiest D. happyer * 1 điểm A B C D 6. Detective books are………………… than science fiction ones. A. more interesting B. interestingly C. interstinger D. interesting * 1 điểm A B C D 7. That T-­shirt is the …………… we have in stock. A. big B.bigger C. small D. smallest * 1 điểm A B C D 8. This hat is the ……………… of all. A. expensivest B. more expensive C. cheapest D. cheaper * 1 điểm A B C D 9. This book is the ………………… of all. A. bored B.boring C. more boring D. most boring * 1 điểm A B C D 10. He is …………. at maths than at any other subjects. A. better B. more good C. goodlier D. gooder * 1 điểm A B C D

Làm giúp mình 10 câu này nhé. Mình cảm ơn