Question IV: Choose the best option to complete the following sentences. ( 2.0 points)

1.  I have known Peter………………..two years.

2. Nam……………………….eating fast food because it’s not good for his health.

3.I find  ……………  interesting because I can stay in shape

4. I ………………. My mother to clean the rooms yesterday.

5. Do ……………. exercise  or you’ll put on weight

 A. less                       B. more                    C. little                      D. many

6. My ………………. is collecting stamp.

A. things                   B. work                    C. job                         D. hobby 

7. I think you should take up swimming because it is ………. for your health condition.

A. for                          B. with                    C. at                           D. of

8. I want to raise money for ………………….. children and give them food.

A. home                      B. street                  C. road                        D. blood

1.  I have known Peter………………..two years.

2. Nam……………………….eating fast food because it’s not good for his health.

3.I find  ……………  interesting because I can stay in shape

4. I ………………. My mother to clean the rooms yesterday.

5. Do ……………. exercise  or you’ll put on weight

 A. less                       B. more                    C. little                      D. many

6. My ………………. is collecting stamp.

A. things                   B. work                    C. job                         D. hobby 

7. I think you should take up swimming because it is …good. for your health condition. (đề hỏi kiểu jztr :v?)

A. for                          B. with                    C. at                           D. of

8. I want to raise money for ………………….. children and give them food.

A. home                      B. street                  C. road                        D. blood

Question IV: Choose the best option to complete the following sentences. ( 2.0 points)

1.  I have known Peter………………..two years.

2. Nam……………………….eating fast food because it’s not good for his health.

3.I find  ……………  interesting because I can stay in shape

4. I ………………. My mother to clean the rooms yesterday.

5. Do ……………. exercise  or you’ll put on weight

 A. less                       B. more                    C. little                      D. many

6. My ………………. is collecting stamp.

A. things                   B. work                    C. job                         D. hobby 

7. I think you should take up swimming because it is …good……. for your health condition. 

8. I want to raise money for ………………….. children and give them food.

A. home                      B. street                  C. road                        D. blood

\(M_{CH}=12+4=16(loại)\\ M_{C_4H_4}=12.4+4=52(loại)\\ M_{C_6H_6}=12.6+6=78(nhận)\\ M_{C_6H_8}=12.6+8=80(loại)\)

Vậy chọn \(C_6H_6\)

Các bn giúp mik vs

mình nghĩ bài này nên cho thêm thành phần % khối lượng của C và H thì sẽ dễ làm hơn

C

B. for

Bài 3

2 was

3 loved

4 cared

5 died

B

1 decided

2 got

3 was flying - were playing

5 asked

6 was enjoying 

7 covered

Bài 4

1 used to

2 used to

4 didn't use to

5 didn't use to

Bài 5

2 live

3 watch

4 going

5 ride

6 washing

a: =38-21-58-69=-20-90=-110

Câu 8:

a) Bảo toàn khối lượng: \(m_{O_2}=m_{KClO_3}-m_{rắn}=9,6\left(g\right)\)

\(\Rightarrow n_{O_2}=\dfrac{9,6}{32}=0,3\left(mol\right)\) \(\Rightarrow V_{O_2}=0,3\cdot22,4=6,72\left(l\right)\)

b) Bảo toàn khối lượng: \(m_{rắn}=m_{O_2}+m_P=9,6+9,3=18,9\left(g\right)\)

đề 10 câu thì bn cần giúp câu nào :)

Khá nhiều câu, em cần câu nào?

Bài 5

B=  \(\dfrac{2015}{2016+2017+2018}\)+\(\dfrac{2016}{2016+2017+2018}\)+\(\dfrac{2017}{2016+2017+2018}\)

Ta có:\(\dfrac{2015}{2016}\)>\(\dfrac{2015}{2016+2017+2018}\),\(\dfrac{2016}{2017}\)>\(\dfrac{2016}{2016+2017+2018}\),\(\dfrac{2017}{2018}\)>\(\dfrac{2017}{2016+2017+2018}\)

⇒A>B

Bài 5:

Ta có:

\(B=\dfrac{2015+2016+2017}{2016+2017+2018}\) 

\(B=\dfrac{2015}{2016+2017+2018}+\dfrac{2016}{2016+2017+2018}+\dfrac{2017}{2016+2017+2018}\) 

Vì \(\dfrac{2015}{2016}>\dfrac{2015}{2016+2017+2018}\) 

\(\dfrac{2016}{2017}>\dfrac{2016}{2016+2017+2018}\) 

\(\dfrac{2017}{2018}>\dfrac{2017}{2016+2017+2018}\) 

\(\Rightarrow A>B\)

bài 1 có ở phần dưới rồi nhé!