IX.
1. He gets to work in half an hour 
2. It is not necessary to finish the work today 
3. The bad weather prevented us from going picnic
4. My father took a taxi to get to Hanoi last month 
5. The trip to HCM city wasn't as cheap as we expected
6. The children enjoyed walking in the rain 
7. We have a two-month summer vacation 
8. The sailors prefer the sea to the land 
X. 
1.You had better not to eat too much candies because they are not good for your teeth 
2. Last years my brother work as a engineer in a printing factory 
3. "Balanced diet" means that you eat a variety of foods without eating too much anything
4. Children should spend only a small part of their free time playing electronic games 
5. This morning I eat bread and drink milk for breakfast

chúc em học tốt. 

IX.

1. He gets to work in half an hour.

→ It + takes/took + sb + time + to_V: nó tốn bao nhiêu thời gian của ai đó để làm gì

= S + V ( chia theo thì ) + in + time

2. It is not necessary to finish the work today.

→ not need = not necessary: không cần thiết

3. The bad weather prevented us from going picnic.

→ prevented sb from doing sth: ngăn cản ai đó làm việc gì

4. My father took a taxi to get to Hanoi last month.

→ get to somewhere by transport = take a transport to get somewhere

5. The trip to HCM city wasn't as expensive as we expected.

→ cheap = not expensive

6. The children enjoyed walking in the rain.

→ like + to_V/V_ing = enjoy + V_ing: thích làm gì

7. We have a two-month summer vacation.

8. The sailors prefer the sea to the land.

→ prefer N/V_ing to N/V_ing: thích cái gì hơn cái gì

X.

1. You had better not to eat too much candies because they are not good for your teeth.

2. Last years my brother worked as a engineer in a printing factory.

3. "Balanced diet" means that you eat a variety of foods without eating too much anything.

4. Children should spend only a small part of their free time playing electronic games.

5. This morning I eat bread and drink milk for breakfast.