Fill in the blank with "is" or "are" to complete the following sentences. 17. Korean ......very hard to learn. 18. Pliers ........for holding things firmly or cutting wire. 19. The city committee .......trying to make the final decision about the matter. 20. Thirty percent of the voters .......elderly people. 21. A hundred pounds ............too expensive for that shirt! 22. Three fifths of the land in this area .......used for community purposes. 23. The Japanese ...........believed to be very self-respected. 24. Statistics...........the science of collecting and analysing numbers and figures. 25. Ten miles...........not easy for us to drive in this snow. 26. Measles ........proven to be caused by a kind of virus. 27. A good pair of sneakers ..........what a professional runner needs. 28. Cattle .......raised mostly in the south of the United States. 29. Billiards .........considered to be an artistic sport. 30. The jury at this trial ........members of the local communities. 31. Two minutes ......the time he needs to beat it he wants to win the gold medal.

Calli: "Cô gái anh từng yêu mạnh mẽ lắm!^^"+ tên bút dùng calli NL: Anh van con yeu em chu?^^

1. A small cottage ...........on the summit of the mountain. a. stands b. stand 2. The results of Dr. Dadilla's experiment........announced in a scientific conference this afternoon. a. was b. were 3. Not only the air but also the oceans...........been polluted seriously. a. has b. have 4. Everyone ........equal rights. a. has b. have 5. Working in the factory ............not what children should do. a. is b. are 6. Some of the milk I bought last night ..........not fresh anymore. a. is b. are 7. No expert ..........studied this area yet. a. has b. have 8. Each of the residents in this community ..........responsible for keeping this park clean. a. is b. are 9. I don't want to talk with anybody who ..........not in charge of this plan. a. is b. are 10. Neither Arnord nor his partners ...........blamed for this mistake. a. was b. were 11. A lot of dirty gas............emitted into the air every day. a. is b. are 12. Several employees ..........very bad jobs. a. has b. have 13. No one ..........the right to tell me what to do or not to do. a. has b. have 14. Most of the roads .............been dug for drainage work. a. has b. have 15. Either you or I .........able to do that job. a. are b. am 16. My sister, together with her two children, ......flying to Hawaii at the moment. a. is b. are

Giúpppp em với ạ em cần gấp lắmmmmmmmmm

Bài 4. Cho đường thẳng (d): y = (m – 2)x + m và (d’): y = 2x + 7- m.Với giá trị nào của m thì đường thẳng (d) cắt đường thẳng(d’) tại một điểm trên trục tung.

Dùng lực F dọc theo mặt phẳng nghiêng kéo vật m = 20(kg) trượt lên trên mặt phẳng nghiêng có góc nghiêng α= 300 và có độ cao h = 2(m). Biết hệ số ma sát trượt giữa vật và mặt phẳng nghiêng 0,1√3 và khi lên đến đỉnh mặt phẳng nghiêng vật đạt vận tốc 4(m/s). Giá trị của F

ai biết giúp mik với ạ.số các giá trị là gì ?

6a^2y-3aby+4a^x-2abx giải vs 2 cách gúp mình

giúp e đi ạ . e đang cần gấp lm. e cảm ơn :(( huhu

Đa thức 5x^4 - 3x^2 + 5x chia hết cho đa thức 3x^n với những giá trị n nào