Một viên gạch có khối lượng 900gam . tính trọng lượng đống gạch có 10000 viên

vì sao cuộc tiến công phòng vệ sang đất tống không phải là một cuộc chiến tranh xâm lược

V. Supply the correct form of the words in the parentheses 1. Video can help the police when there is a (rob ) 2. I can think of (count less )reason for not attending the meeting 3. I am ……………….(extreme) sorry for the delay 4. There was an (exhibite ) of paintings at the Art Gallery 5. His parents .....................(courage) him to take par tin the contest 6. I am going to have my skirt (short) 7. It rained heavily, so we had a very ........................(please) holiday 8. That 's an (necessity) ……….remark. It would have been better to keep silent 9. It was (hospitable) …………………of you not to offer her a drink 10. It is very (think)…………. of you to play music so loud at night 11. That woman has very little (school)…………..…... 12. Nam is thinking of something. He look (think)……………… 13. These children lack (parentl) …………….care 14. You are extremly …………………… about the history of Japan (know) 15. If it doesn’t rain soon, there’ll be a great …………… of water.(short) VII. Find the mistakes in the following sentence and correct them 1. Let’s gathering somewhere for a coffee after this wonderful meeting. 2. I look forward to hear from my mother in Singapore. 3. They turn in the radio to listen to some news. 4. I will come and stay with you and your family on March . 5. People said we ought to spend at least a little weeks at the seaside a year. 6. My dear friends, I wish you will visit us someday this summer. 7. Let’s practise listening to English programs in the radio. 8. There is many information in the seven o’clock news. 9. They denied to steal the money in the bank last week. 10. Unfortunate, We caught the last bus and we returned home late at night.

viết thơ về thùy linh nấm lùn mê conan phong cách ăn mặc thể thao học giỏi dâm(hơi thui)

một lò xo nhẹ khi bị nén bởi lực F1=6N thì chiều dài là l1=44cm khi bị nén bởi lực F2=2N thì chiều dài là l2=52cm.Tính độ cứng k và chiều dài tự nhiên lo của lò xo

Giúp mình với ạ mình cần gấp. Tìm các số hữu tỉ x, y, z biết rằng: x(x+y+z) = -5; y(x+y+z) = 9; z(x+y+z) = 5

III. Give the correct form of the verbs in bracket 1. The statue (break) while it (move) to another room in the museum 2. It's the first time he (win ) the school prize 3. It's the high time you (take) care of yourself 4. They boy kept (sing ) that song. 5. I learnt English very hard so that I (have) a good job in the future 6. If the weather (not be) bad today, we (go) camping on the mountain 7. My mother 'd rather I (not/be) lazy 8. My sister always made my mother (cry) 9. I suggest that we (plan) many tres in front of our school 10. .Your report should (write) in English 11. .I learned to swim when I (be)very young. I (teach) by my father 12. Yesterday the police reported that they (capture) the thief VI. Rewrite these sentences that have the same meaning, using suggested words in the 1. I usually walk to work but today I drove. ( instead) 2. he information I got from the assistant was so confusing that I didn’t know what to do. (such) 3. Oh, sorry Jane, you are not lucky to day. (out) 4. Although the weather was bad, we went to school on time. (spite) 5. Maths is difficult for her to learn (find) 6. She hasn’t called me since I moved here (last) 7. Mr. brown feeds the chicken. He collects their eggs. (not only....... but also) 8. The man was taken to the local hospital. He was injured in the accident.(past participle) 9. The musician is internationally famous. He appeared in the concert last night.(present participle) 10. His explanation is not clear. The examples he gives are not clear. ( neither........nor)

A= 2+2^3+2^4+2^5+.......+2^2009 B=1+2^2+2^4+2^6+2^8+....+2^200 C=5+5^3+5^5+5^7+...+5^101

∩ dấu này là gì vậy mong mn giúp đỡ

Vậy đố các bạn 1254+15+1+5+8+4+5+8+85+1+5+8+4+8+3 bằng mấy