C

1. C
2. A
3. A
4. B

47 liên từ phải là "so" chứ ạ

copy paste :(

13. F
14. T
15. F
16. T
17. D
18. B

44. My friend is fond of K-Pop music.
45. I spend two hours cycling every day.
46. She has worked for this volunteer organization since 2010.
47. You don't wear a hat, so you have sunburn.
48. She is the most beautiful girl I have met.
49. I knocked at their door, but nobody was there.
50. How about going swimming this afternoon?

39. D
40. C
41. C
42. D
43. B

hêh đau lưng, mỏi gối, tê tay. Đi ngủ thôi :Đ

I study math quite well, I mean I can do the basic exercises and some advanced math. My math teacher is young, and I feel that she understands student psychology pretty nice, but I don't like her to be realistic. I really can't absorb the knowledge from her way of teaching. So, I try to find some online classes on the internet that I think this teacher is suitable for me. And these things help me get on the knowledge better and doing the advanced math becomes more easily. In the 8^th grade, I learned many interesting types of math such as polynomial division, polynomial multiplication, Important Mathematical Formulas,... (in Algebra), and in Geometry, I learn about geometry types and their properties. I find that when doing algebra problems, we need to use a lot of calculating skills with the formulas in the textbook, and once you get used to how to do the solution, it'll be very easy. But I prefer Geometry to Algebra because when solving geometry problems you need to think more and what you need is a seamless mindset. As I just said the calculation may seem difficult at first but as you get used to it, it becomes leisurely. So I see calculation is not difficult. In fact, Math is the most important subject. Nowadays, many works and jobs need to use math. I think children now should be exposed to Math from an early age to familiarize themselves with numbers and practice quick reflexes. To sum up, Math is something very important and essential in human life so we need more and more talented people to figure out the rest of Math math talent to figure out the rest of math and of course that Math knowledge is beneficial to our lives.

The community Service Network serves as umbrella (1. ORGANIZE) organization which provided resources, funding, and support to student groups aiming to (2. GOOD) better the Rochester and the (3. NATION) international community. CSN’s main goal is to help campus become aware of (4. SOCIOECONOMY) socioeconomic health-related and (5. EDUCATION) educational issues salient to individuals in the (6. GREAT) greater Rochester and to provide a framework within which (7. POWER) empowered students can channel their energy and benefit their (8. ENVIRONMENTAL) environment. While working with RCCL, CSN hopes to foster long-term civic (9. ENGAGE) engagement and a sense of commitment to pressing (10. SOCIETY) social issues within University of Rochester students.