0 sights

1 awesome

2 enthusiastic

3 achievement

4 competitor

5 unstable

6 steadily

7 boring

8 strengthen

9 additional

10 likelihood

1->13 mình làm ở đây nhé

→https://hoc24.vn/cau-hoi/giup-to-vss-a.7543535789690

Bạn tham khảo lời giải tại đây:

https://hoc24.vn/cau-hoi/giai-pt-sqrtx-2sqrt4-x2x2-5x-1.219493072549

12 This matter to which you should pay attention is of great importance

13 The woman to whom you gave place on the bus lives next door to me

1 Life in the country is not as good as life in the city

2 These room are cleaned every evening

3 Would you mind decorating the christmas tree

4 It's the first time I have talked to the headmaster

V

1 have ever met

2 worked

3 reading

4 are looking - seeing

5 was

VI

1A

2A

3D

4D

5B

IV/

1. is not as good as life in the city

2. are cleaned every evening

3. decorating the Christmas tree?

4. the first time I have (ever) talked to the headmaster

V/

1. have ever met

2. worked

3. reading

4. are looking - seeing

5. was

VI/

1a 2a 3d 4d 5b

Ta có: \(\overline{A}=\dfrac{24\cdot69+25\cdot\left(100-69\right)}{100}=24,31\)

Gọi \(n_{MgCl_2}=1\left(mol\right)=n_{Mg}\) \(\Rightarrow n_{^{25}Mg}=0,31\left(mol\right)\)

\(\Rightarrow\%m_{^{25}Mg}=\dfrac{25\cdot0.31}{24,31+35,5\cdot2}\approx8,13\%\)

VIII

1 Have you ever been

2 Did you go

3 went

4 got up

5 have never got 

6 got 

7 Have you ever seen

D

I

1 B

2 A

3 D

4 A

5 C