VI:1. the glasses are mine

2. here shoes are his

3.the cup is hers

4. the pencils are ours

5. the picture is theirs

VII:1. nowadays , there have been many interesting transport inventions.

2. the Mono-wheel is a single-wheel bike .

3. the drivers sit inside the wheel and pedals to go forward .

4. the driver pulls the handle to go back or pushes it to go forward .

5.i guess it is a convenient , green way to travel

6.they will be learning english at this time tommorow

7.we will reduce the use of electricity to save our energy

8.i think biogas is abundant and cheap for cooking and heating

9.wil we use public transportation when long distances?

VIII:           1.protection          2.knowledge             3,hotter         4,appliances          5.products    7,inventor      9,friendly      10,shortage

mấy câu khác bị thiếu nên mk ko lm đc

1, They are mine

2, Here's his

3, It's hers

4,They are ours

5, It's theirs