Trên thế giới có bao nhiu mét khối không khí🤣🤣🤣❤

Anh chị giúp e giải bài 6 vs ạ . Em cảm ơn ạ.

Exercise 10: Choose the best answer for each of the following sentences. 1. ………………… have enough apples, she’ll make an apple pie this afternoon. A. Should she B. If she C. Will she D. Unless she 2. If you ………………… to me, you wouldn’t have got so much trouble. A. listened B. would listen C. had listened D. would have listened 3. If you don’t know how to spell a word, you ………………… look it up in the dictionary. A. must B. will C. should D. ought 4. If the sun …………………, we ………………… for a walk. A. shines - will go B. shone - will go C. shone - would go D. had shone - would go 5. The campfire ………………… if it ………………… last night. A. wouldn’t be cancelled - hadn’t rained B. wouldn’t have been cancelled - hadn’t rained C. would have been cancelled - hadn’t rained D. will be cancelled - rains 6. But for our parents, we ………………… successful in life. A. will never be B. would never be C. wouldn’t have been D. would have never been 7. If I ………………… my wallet at home this morning, l ………………… money for lunch now. A. leave - will have B. didn’t leave - would have C. hadn’t left - would have D. hadn’t left - would have had 8. It is too bad, Lam isn’t here. If he ………………… here, he ………………… what to do. A. were/ would know B. is/ will know C. had been/ would have known D. was/ would know 9. If we ………………… the plans carefully, we would not have had so many serious mistakes. A. study B. had studied C. studied D. were studying 10. I ………………… will never talk to you again ………………… you apologize me ………………… your being rude. A. if - for B. unless - for C. or - of D. whether - or 11. ………………… you work harder, you will be sacked. A. Whether B. If C. However D. Unless 12. I think you should stop smoking. A. If I am you, I will stop smoking. B. If I were you, I will stop smoking. C. If I were you, I would stop smoking. D. If I had been you, I would stop smoking. 13. If you take the ice out of the fridge, it ………………… A. vaporizes B. melts C. heats D. disappears 14. We should do something to protect water from being polluted ………………… we will have nothing to drink in the future. A. if B. whether C. or D. unless 15. Let’s knock on their door to see ………………… home. A. if they’re B. unless they’re C. whether they were D. if they were 16. Unless we ………………… more snow, we can’t go skiing. A. will have B. have C. have had D. had 17. You’ll fail the exam ………………… you start revising. A. if B. until C. when D. unless 18. Unless you wash the car, you ………………… not drive it at the weekend. A. would B. could C. have to D. may 19. If Peter ………………… his car before the drive, he ………………… the problem of out of petrol. A. checked - will not get B. had checked - would not have got C. checks - will not have got D. would be checking - will not have got 20. He stepped on the mine, and it exploded. A. If he doesn’t step on the mine, it doesn’t explode. B. If he doesn’t step on the mine, it won’t explode. C. If he didn’t step on the mine, it wouldn’t explode. D. If he hadn’t stepped on the mine, it wouldn’t have exploded. 5 sao + 1 câu trả lời hay nhất + 1 cảm ơn

Cho tam giác ABC có AB = 6cm, AC = 8cm và BC = 10cm. a) Chứng tỏ tam giác ABC vuông. b) Kẻ phân giác BD và CE (D thuộc AC, E thuộc AB), BD và CE cắt nhau tại I. Tính góc D =BIC Giúp mk làm câu b thôi ạ 🙏🙏🙏

để chuyển 11,2 g Fe thành FeCl3 thì thể tích Cl cần cùng là bao nhiêu

Tìm số tự nhiên a sao cho 6a-13/5a-17 max

$\frac{5x+2}{3xy^{2}}$:$\frac{x+4}{xy^{2}}$

Giúp mình với ạ, mình cảm ơn nhiều

Exercise 9: Give the correct form of the verb in brackets. 1. If we send an invitation, our friends (come) will come to our party. 2. He doesn’t understand you if you (whisper) whisper. 3. She will forget to pick you up if you (not phone) don’t phone her. 4. If you press “CTRL + S”, you (save) will save the file. 5. I will remember you if you (give) give me a photo. 6. Fred will answer the phone if his wife (have) has a bath. 7. If Claire wears this dress at the party, her friends (be) will be happy. 8. If I touch this snake, my girlfriend (not scream) will not scream. 9. If he (study) studies harder, he can pass an exam. 10. She may be late if she (not hurry) doesn’t hurry. 11. Tell him to ring me if you (see) see him. 12. If you are kind to me, I (be) will be good to you. 13. If he (give) gives up smoking, as his doctor orders, he will be soon well again. 14. You (not pass) will not pass your driving test unless you drive more carefully. 15. He’ll be ill if he (not stop) doesn’t stop worrying so much. 16. Jane never (get) can get there on time if the train leaves soon. 17. I’ll be very angry if he (make) makes any more mistakes. 18. If he (wash) washes my car I’ll give him $10. 19. If he (not eat) doesn’t eat all, he will be ill. 20. If you don’t finish (not finish) your homework, you can’t play computer games.

Cm n mũ 6 -1 chia hết 7 với n thuộc N và không chia hết 7