Quan sát hình, giải thích sự biến động số lượng của các sinh vật trong quần xã qua hình

Ở ô E2 gõ = (9+3)/2 +(7-5)^2*2 kết quả là

IV. Give the correct form of the verbs in the past tense. 1. do 11. buy 2. teach 12. have 3. send 13. take 4. spend 14. go 5. begin 15. make 6. cut 16. think 7. put 17. see 8. give 18. eat 9. write 19. sing 10. be 20. wear V. Arrange the verbs pronouncing “ed”. listened wrapped painted raised looked needed visited rained watched opened helped seemed learned practiced stopped remembered worked rented arrived talked lived liked invited received washed /id/ /t/ /d/ XI. Fill in the blank using the words in the box. Turn left Come in Don’t wait Don’t forget Stop the car! Help me! Have Don’t listen Pass Don’t be late! Open Come Catch Take 1. Ex :Don’t wait for me. I’m not coming tonight. 2. an umbrella with you. It’s raining. 3. a rest. You look tired. 4. at the end of the street. 5. I can’t swim! 6. to take your passport. 7. There’s a mouse in the road. 8. to my cocktail party, please. 9. your books at page 15. 10. the salt, please. 11. to that record. It’s terrible. 12. The train leaves at 8 o’clock. 13. and have a glass of lemonade. 14. the first train in the morning XII. Rewrite the following sentences, using the structure of imperative. Ex: You should go to bed early. Go to bed early. You should not stay up late. Don’t stay up late. 1. You should brush your teeth after meals. 2. You should not play soccer in the street. 3. You should wash and iron your own clothes. 4. You should not eat too much candy. 5. You should wash your hands before meals. 6. You should not worry about the examination. 7. You should tidy your room every day. 8. You should not forget to write to your parents. Giúp mk vs

Mọi người ơi giúp mk câu này vs mk cần gấp lắm rồi, cảm ơn mọi người nhiều

1/he is a famous...in the world(science) 2/the sky is very....It's going to rain(cloud) 3/If we use pesticide on vegetables,they will become...(poison) 4/i hope we heave...weather for our holidays(sun) 5/the ocean is polluted because raw sewage is pumped...into the sea.(direct)

Rearrange the sentences to make meaningful sentences Question 11: Malaysia’s/ its/ Kuala Lumpur/ and/ is/ largest city/ capital. A. Kuala Lumpur is Malaysia's capital and its largest city. B. Malaysia's Kuala Lumpur is capital and its largest city. C. Kuala Lumpur is its largest city Malaysia's capital and. D. Kuala Lumpur is Malaysia's its largest capital and city. Question 12: seeing/ I/ London/ London Eye/ in/ enjoy/ the. A. I enjoy seeing the London Eye in London. B. I enjoy London seeing the London Eye in. C. I enjoy seeing in London the London Eye. D. I enjoy the London Eye seeing in London. Question 13: your/ bigger/ house/ is/ than/ mine. A. Your house is bigger than mine. B. Your is bigger than mine house. C. Mine house is bigger than your. D. Your house is than bigger mine. Question 14: tomorrow/ supermarket/ the/ some/ is/ Mary/ flowers/ going/ the/ buy/ at. A. Mary is going at the supermarket to buy some flowers tomorrow. B. Mary is buy some flowers going to at the supermarket tomorrow. C. Mary is going to buy some flowers at the supermarket tomorrow. D. Mary is going at some supermarket to buy the flowers tomorrow. Rewrite sentences without changing the meaning Question 15: Did you fly to Los Angeles? A. Did you went to Los Angeles on foot? B. Did you go to Los Angeles by plane? C. Did you go to Los Angeles on foot? D. Did you went to Los Angeles by plane? Question 16: Mr. and Mrs. Black have a son, John. A. John is Mr. and Mrs. Black’s son. B. John is Mr. and Mrs. Black’s father. C. John is Mr. and Mrs. Black’s mother. D. John is Mr. and Mrs. Black’s parents. Question 17: Mr. Peter drives to Amsterdam every month. A. Mr. Peter goes to Amsterdam by plane every month. B. Mr. Peter goes to Amsterdam by horse every month. C. Mr. Peter goes to Amsterdam by car every month. D. Mr. Peter goes to Amsterdam by bike every month. Question 18: The world has seven continents. A. There are seven continents in the world. B. Seven continents have the world. C. There is the world in seven continents. D. The world there is seven continents. Question 19: Africa is large. Asia is larger. A. Asia is largest than Africa. B. Africa is larger than Asia. C. Asia is larger than Africa. D. Africa is largest than Asia. Question 20: My brother is tall. My father is taller. A. My brother is taller than my father. B. My father is taller than my brother. C. My father has the taller height than my brother. D. My brother has the taller height than my father 

Ai giỏi công nghệ giúp mik 3 câu này với ạ. Cảm ơn trước.

Giúp em nhé em cho 5 sao Luôn ạ

(m-1)x^2-2mx+m+1=0 a) tìm m để pt có nghiệm b) tìm m để pt có nghiệm x1,x2 sao cho x1+x2=5

Ai xong trc mk vote cho 5 sao.Please................................................ Combine each pair of sentences as directed in the brackets. The first is done as an example Câu 1 là mẫu nhé 1. He is treated well. He is used to it. ( use: Gerund phrase ) He is used to being treated well 2. She whispered to me. She hoped they couldn't hear her. ( use: so that ) 3. He falls dow. He lies still on the floor. ( use: present part participle phrase ) 4. She can't play the piano and she can't play the guitar. ( use: " neither .... nor " ) 5. She bought a pen. she đin't get a pencil. ( use: instead of ) 6. She was afraid. She đin't want to spend the night alone. ( use: of ) 7. Think carefully. Answer my question. ( use: before ) 8. How does the story end? I want to know this. ( use: How )