I am helping Hoa and Lan with doing homework at the present
=>.....Hoa and Lan are being helped with doing homework at the present ......

câu 1 đúng
câu 2,3,4,5 chắc chắn là copy mạng nên sai
2: Nguyên đoạn đó có liệt kê caving lights, air conditioners, and television.... nên phải dùng "Ví dụ như: For example".
3. Using too much/many/a lot of/lots of..... + N
4. O + V( chủ ngữ số nhiều để nguyên, số ít thêm s/es)

Every day, in homes all over the world, people waste huge (1) __________ of energy and water. Hong Kong is estimated to waste about $ 5 billion worth of energy a year. This is due to their bad habits. (2) __________ caving lights, air-conditioners and television on when no one is in the room wastes a lot of energy. Using too (3) __________ water or not fixing dripping taps also contributes to the problem. Most people do not realize that saving energy in the home will actually save them money. If people _______(4) less energy, gas and electricity bills will become lower. Most of the ways we can use to decrease energy consumption in the home are very use, or simple. The most obvious one is turning off household appliances when they are not (5) __________ equipping our homes with energy-saving bulbs

Answers:

1. amounts

2. For example

3. much

4. use

5. in use

\(13 . \left(-78\right)+78 . \left(-87\right)=\left[13+\left(-87\right)\right] . \left[\left(-78\right)+78\right]=-74 . 0=0\)

mk nghĩ là vậy =))))))))))))))))))

1. They put those newspapers on the reading table
=>.....Those newspapers are put on the reading table by them.......

Không có cái hình thì có biết hình dạng nó ra sao đâu mà giúp được bạn ơi?

Today, I felt very tired. Not because I am sick, it's because I had to travel around Ho Chi Minh City with my uncle by car, he is Americans and it's the first time he been to Ho Chi Minh so he knows nothing about it. So I have to go with him by car for at least 8-9 hours for him sight-seeing around the city. Now, I am at home, lying on my bed and relax my brain. But I also need to wake up studying, or else I would get bad grades and get punish. 

hợp lí =)))))))))

tổng hợp nhiều môn ạ :))))))))))))