1 tổng nhiều số hạng khi chia hết hết cho một số khác 0. khi và chỉ khi nào và tại sao

Ai là người có ý nghĩ tiêu cực, ai là người có suy nghĩ tích cực giúp e vs mng ạ e cho Ctlhn vs sao ạ:)

nó nói a đờ gì đó ạ câu này hơi khó

Làm giúp mình và giải thích lun ạ vote tim đầy đủ ậ

II. Choose the best answer. 1. How many windows in your class? A. are there B. there are C. there isn’t D. there aren’t 2. They often play soccer in the . A. school gate B. schoolyard C. schoolmate D. schoolwork 3. Which word has three syllables? A. table B. telephone C. window D. bench 4. Those pens and pencils. A. is B. are C. has D. have 5. meadows on the way. A. There is B. There are C. There has D. There have 6. Is this your favorite class? A. Yes, this is. B. No, there isn’t C. Yes, I think so. D. No, it doesn’t. 7. There are five people in family. A. they B. their C. them D. theirs 8. Tell me something your family. A. about B. Φ C. over D. on 9. Go and a bath! A. wash B. make C. do D. have 10. Close the door ; it’s cold in here. A. Φ B. up C. to D. have 11. My house is opposite the park. A. from B. of C. Φ D. to 12. Which word has four syllables? A. literature B. chemistry C. history D. physics 13. How money do you want? A. many B. much C. little D. a lot of 14. do they work? - They work in a big hospital. A. Who B. When C. What D. Where 15. What are those? CDs. A. This is B. These are C. They are D. That is 16. What’s the date today ? - It is June. A. twelve B. twelfth C. twelve of D. the twelfth of 17. How many windows are there in your house? - six. A. There is B. There are C. There has D. There have 18. is Phong ? - He’s in the living room. A. When B. Where C. Who D. What 19. Which verb adds _es in the third person? A. go B. write C. sleep D. tell 20. a clock in your room? A. Are there B. Is there C. Have there D. Has there

giúp mình cau dưới nha, iu càu ko spam, buff. chi tiet giùm ạ

It was mid-afternoon (1) __________ they reached Naaskard. The rocky slopes of the mountain (2) __________ colored brown, red, orange, yellow and white (3) __________ the geothermal activity beneath. Below the eastern flank of the mountain lay (4) __________ area of sulphur pits and pools of bubbling mud. Jets of super-heated steam erupted (5) __________ events in the ground. “Phew!” Ganying wrinkled her nose at the overpowering (6) __________, “It’s just (7) __________ rotten eggs!” “Hydrogen sulphide gas, actually. Mind (8) __________ camera!” Alan warned, seizing her arm and drawing her (9) __________ as she ventured too (10) __________ to the hissing steam. “That vapor (11) __________ hydrochloric acid, among (12) __________ things.” Ganying clutched her camera tightly. They crouched (13) __________ beside one of the largest mud pools. It was to meters across, with a meter-high rim formed (14) __________ the splattering mud. The liquid mud slurped noisily as large bubbles of gas burst. Ganying quickly took (15) __________ her camera. Ganying got two marvelous shots. (16) __________ was of a meter-wide bubble rising into a dome. The other was (17) __________ a circle of droplets hanging in mid-air. She walked (18) __________ towards a cream-colored cone (19) __________ which steam was billowing like a mini-volcano. The smell was terrible, and the mouth of the cone was stained yellow (20) __________ the powdered sulphur.

Giúp em với mọi người ơi giúp em với ạ 12h là em nộp rồi ạ ko cần làm câu a

Nhanh giúp mình với ạ, tks mn nhiều

Một hộp chứa 5 viên bi đỏ, 6 viên bi xanh và 7 viên bi trắng. Chọn ngẫu nhiên 6 viên bi từ hộp, tính xác suất để được 6 viên bi có cả ba màu đồng thời hiệu của số bi xanh và bi đỏ, hiệu của số bi trắng và số bi xanh, hiệu của số bi đỏ và số bi trắng theo thứ tự là ba số hạng liên tiếp của một cấp số cộng