Choose the best option to complete to complete each sentence. Circle A,B,or C 1. I ________ride a bicycle when I was a child. A.used to B. use to C.am used to 2.That area _________ have a school A. use to B.used to C.was used to 3.My father _________drive to work, but now he does. A.didn't use to B.didn't C.use not to 4. _________ Jim ___________drive a big car ? A. Did/use to B.Does/used to C.Was/used to 5. My uncle ___________ a bus drive, but now he has a desk job A.used to have B.was used to be C.used to be Các bn giúp mình nha

Cho 23 gam Na tác dụng hết với H2 O. Khối lượng m của NaOH thu được sau phản ứng là bao nhiêu? giúp mk vs ạ

Cho tam Giác ABC vuông tại B.Kẻ phân giác AD.Qua C kẻ đường thẳng vuông BC cắt AD tại E,gọi F là hình chiếu của D trên AC.Bt ΔBEF cân.Cminh ΔECD và ΔABD đồng dạng.

15. The air is so dirty. I sneeze so much. CONDITIONAL SENTENCE TYPE 2 _____________________________________________________________________________ 16. Their children have birth defects. The parents were exposed to radiation. BECAUSE _____________________________________________________________________________ 17. The air pollution causes breathing problems. LEADS ___________________________________________________________________

A. Finish these sentences by adding a tag question with the correct form of the verbs and the subject pronoun. 1. You're going to school tomorrow, ____________? 2. Gary signed the petition, ___________________? 3. There's an exam tomorrow, _________________? 4. Beverly will be attending the university in September, ____________? 5. She's been studying English foe two years, ___________________? 6. It doesn't work, _______________? 7. He should stay in bed, _______________? 8. Let's go fishing, ____________? 9. Jill and Joe have been to Mexico, _______________? 10. You and I talked to the professor yesterday, ___________________? 11. You will stay in touch, ____________? 12. After the couple of the years the heat gets too much, ____________? 13. You didn't know I was an artist, _________________? 14. It is quite warm, ____________? 15. That hardly counts, ______________? 16. Oh, he wants us to make films as well, ____________________? 17. I'll tell you roughly, _____________? 18. You rarely see that sort of thing these days, ____________? 19. Women are very seldom convicted, ___________________? 20. Nobody knows the answer, _________________?

25*(- 1/5)^3 +1/5 -2*(- 1/2)^2 -1/2

Bạch huyết (BH) luân chuyển trong hệ bạch huyết theo thứ tự nào sau đây? A: Mao mạch BH → ống BH → mạch BH → hạch BH → mạch BH → tĩnh mạch. B: Mao mạch BH → mạch BH → ống BH → mạch BH → hạch BH → tĩnh mạch. C: Mao mạch BH → hạch BH → mạch BH → ống BH → mạch BH → tĩnh mạch. D: Mao mạch BH → mạch BH → hạch BH → mạch BH → ống BH → tĩnh mạch.

Các bn giúp mình phần b câu 3 thui nhá

Cho các chất: etilen, axetilen, metan, benzen. Trong các chất đó, số chất có phản ứng với nước brom là A: 3. B: 2. C: 1. D: 4.

tính giá trị của biểu thức: a,ax-ay+by với a+b=15;x-y= -2 b,2xa+2xb-a-b với a+b=-9;2x-1=-3 mong mọi người giúp em với em sẽ cho những người giải đc 5 sao luôn