II. Sentences transformation 1. It started to rain at 2 o’clock. => It has _------------------------------------------------------------ 2. I have been learning Chinese for two years. => I started _______________________________________________________ 3. He has been collecting stamps for five years. => He started _____________________________________________________ 4. She has been learning English for 8 mouths. => She has _______________________________________________________ 5. They started working for the enterprise in 2002. => They have _____________________________________________________ 6. They have been playing tennis since last year. => They began ____________________________________________________ 7. They have worked in that factory since 2001. => They started ___________________________________________________ 8. We have been living here for fifteen years. => We have_______________________________________________________ 9. Minh began to collect stamps in 2000. => Minh has ______________________________________________________ 10. She has been working as a secretary for five years. => She has _______________________________________________________ 11. I began to read that book on September 20th => I haven’t ______________________________________________________ 12. An began to care about healthy eating 3 years ago => An has ________________________________________________________ 13. We begin to wash this car at 8 this morning. => We have ______________________________________________________ 14. We began living here fifteen years ago. => We have_______________________________________________________ 15. Minh began to collect stamps in 2000. => Minh has ______________________________________________________ 16. She began to learn English 8 mouths ago. => She has _______________________________________________________ 17. They started working for the enterprise in 2002. => They have _____________________________________________________ Làm 8 câu cuối thôi ạ

II. Sentences transformation 1. It started to rain at 2 o’clock. => It has _------------------------------------------------------------ 2. I have been learning Chinese for two years. => I started _______________________________________________________ 3. He has been collecting stamps for five years. => He started _____________________________________________________ 4. She has been learning English for 8 mouths. => She has _______________________________________________________ 5. They started working for the enterprise in 2002. => They have _____________________________________________________ 6. They have been playing tennis since last year. => They began ____________________________________________________ 7. They have worked in that factory since 2001. => They started ___________________________________________________ 8. We have been living here for fifteen years. => We have_______________________________________________________ 9. Minh began to collect stamps in 2000. => Minh has ______________________________________________________ 10. She has been working as a secretary for five years. => She has _______________________________________________________ 11. I began to read that book on September 20th => I haven’t ______________________________________________________ 12. An began to care about healthy eating 3 years ago => An has ________________________________________________________ 13. We begin to wash this car at 8 this morning. => We have ______________________________________________________ 14. We began living here fifteen years ago. => We have_______________________________________________________ 15. Minh began to collect stamps in 2000. => Minh has ______________________________________________________ 16. She began to learn English 8 mouths ago. => She has _______________________________________________________ 17. They started working for the enterprise in 2002. => They have _____________________________________________________ Làm 9 câu đầu thôi ạ

Nhờ các anh chị giải giúp em bài 10 hình với nhe em cảm ơn

nêu vài nét về mỹ thuật thời lý

Viết đoạn văn nghị luận xã hội khoảng 200 chữ bàn về việc: "Con người sống cần có mục tiêu".

cho a,b>0 a, $\frac{1}{1+a}$ + $\frac{1}{1+b}$ = √ $\frac{2}{1+√ab}$ khi nào b,$\frac{1}{1+a}$ + $\frac{1}{1+b}$ > √ $\frac{2}{1+√ab}$ khi nào c,$\frac{1}{1+a}$ + $\frac{1}{1+b}$ $\geq$ √ $\frac{2}{1+√ab}$ khi nào d,$\frac{1}{1+a}$ + $\frac{1}{1+b}$ $\leq$ √ $\frac{2}{1+√ab}$ khi nào

Tìm x , y , z biết : 1/2 . x = 1/3 . y = 1/4 . z và x + y + z = 108

I. Sentences transformation 1. Mary began playing the piano 4 years ago => Mary has _______________________________________________ 2. My father hasn’t been to Hanoi for 5 years => It’s _______________________________________________ 3. My father is reading a newspaper. He started 2 hours ago => My father has ______________________________________________ 4. It’s four years since I wrote her => I _________________________________________________________ 5. The last time I went to see them was over a year ago => It __________________________________________ 6. It is two weeks since it last rained => It has __________________________________________ 7. Jane started keeping a diary five years ago => Jane has _________________________________________ 8. I last went swimming in 2001 => I have ______________________________________________ 9. I started to study English when I was 10 years old => I’ve _______________________________________________ 10. We haven’t seen Tom since he moved to London => We last ____________________________________________ 11. My father hasn’t driven a car before => It’s ____________________________________________________ 12. She has never been to the ballet dancing before => This is ___________________________________________________ Giải giúp vs ạ

Bài 1: Có 2436 hs tham gia đồng diễn thể dục. Trong đó 1\2 số hs mặc quần áo đỏ, 1\3 số học sinh mặt quần áo vàng, số hs còn lại mặc quần áo xanh. Hỏi có bn hs mặc áo xanh? ( Bài giải + tóm tắt)

cần gấp ạ các cao nhân nhanh giúp em nha!