16 They ___ each other for five years by the end of the year. a will know b will have known c will be knowing d knew 17 Bill ___ to sell his games console. a won’t b isn’t going c won’t be d shall not 18 You ___ all the work by Friday. You’ve still got so much to get through. a aren’t doing b don’t do c won’t be doing d won’t have done 19 I ___ the scanner again this afternoon, so you can switch it off. a don’t use b won’t be using c won’t have used d would use 20 Sorry! I’ve broken your mp3 player. I promise I ___ you a new one. a will have bought b am buying c will buy d buy

Giúp mình với, ghi thêm dẫn chứng (giải thích) nữa nha Thanks ^^

Cho tam giác ABC vuông tại A , AH là đường cao. Chứng minh rằng: a) AB ^2 =BH.BC b) AH ^2=BH.CH c) 1/ AH^2 = 1/ AB^2 + 1/ AC^2

Mọi người giải hộ em hết dạng 2 với

Vẽ chân dung...............................

Giải thích giúp e chỗ này vs ạ, lm ơn đừng spam

Question 2. Use the correct form of the verbs. 1. He was not used to (answer) ____foreigner's questions, so he (fail)______the exam. 2. John (live) _______in Miami for one year when his parents (come) _____to visit him. 3. When Mark (arrive) ,the Bakers (have)___________ dinner but they (stop) _____(talk)_______ to him. 4. He says he would rather (spend) ______the summer in the mountain. 5. You (have) _ your house (repaint)_____. at the moment 6. I should prefer (go)__ to the cinema rather than (sit)__ here (listen) ___to the radio. 7. The monument (stand)___on a hill overlooking the town. 8. He (not finish) _________it yet, He only (start) ____an hour ago. 9. I wish she (help) ________me with my homework yesterday afternoon. 10. She wishes her parents (visit) ____her next month. 11. My brother usually (go)_ to work early to avoid traffic jams. 12. I (not eat)__ anything for two days. 13. After his wife gave birth to their first son, he immediately (buy)_____ a new cradle 14. They (move) _ to HCM city in 1990 and (live) ____there since then. 5. Helen (feel) _____very well yesterday but today she (feel)_____. sick again. 16. What are you doing tonight? I (go) ___to the circus. 17. What you (do) ___last weekend? - I (go)______to the theater with my family. 18. John and I (be) _______pen pals for nearly three years. 19. Minh (know)__- a little English, so she (wish) ____she (can) speak it fluently. 20. Mary (stay)____ with us at the moment. She (be)__________ my sister's friend.

Giải hộ e bài toán này vs ạ mong mn giải nhanh hộ e

Công thức ổng quát tính diện tích hình ngôi sao $20$ cánh đều.

Thực hiện phép tính (Làm giúp em bài này vs ạ)