I

1.What type of energy do you use at home?
2.John uses low energy light bulbs to save electricity.
3.Mai can't go to the cinema at present because she is studying for her exam.
4.What book are you currently reading?
5.She is not swimming in the swimming pool at the moment.
6.Scientists are looking for a new energy source to replace coal now

II.

1. Coal is more expensive and more polluting than natural gas.

2. We are looking for cheap and clean and effective sourced of energy..

3.. You should switch off electrical appliances when they aren’t in use.

4. Despite being the most polluting of fossil fuels, coal is still the largest sources of energy worldwide.

5. People will use biogas for fuel in homes and for transport

\(\dfrac{-6xy}{7x^4y^2}\cdot14xy^6=\dfrac{-6}{7}\cdot14\cdot\dfrac{x}{x^3}\cdot\dfrac{y^6}{y}\)

\(=-12\cdot\dfrac{y^5}{x^2}\)

1d 2c 3c 4c 5a

1. b

2.d

3.b

4c

5a

1D (âm 1 còn lại 2)

2A (âm 2 còn lại 1)

3D (âm 1 còn lại 2)

4D (âm 2 còn lại 1)

5D (âm 1 còn lại 3)

Betty isn't very tall, she can run very fast

he doesn't hav emuch money, he wants to buy car

there wasn't much food at the party, everybody had a good time

he is a hard worker, he van newer save enough to buy a car

it's rather cold, I think i'll go for a walk

she was unattractive, she still had many friends

1Although Betty isn’t very tall, she can run very fast.

2Although he doesn’t have much money, he wants to buy a car.

3Although there wasn’t much food at the party, everybody had a good time.

4Although he's a hard worker, he can never save enough to buy a car.

5Even though it's rather cold, I think I'll go for a walk.

6Even though she was unattractive, she still had many friends.

Chúc em học giỏi

TK

1. Though Betty isn't very tall, she can run very fast.

2. Even though he doesn't have much money, he wants to buy a car

3. Although there wasn't much food at the party, everybody had a good time.

4. Though he is a hard worker, he can never save enough to buy a car.

5.He didn’t tell me why he’d been late, but I knew it though.

6.Even though it's rather cold, I think I'll go for a walk.

loving Joan very much, he isn't going to marry her

buying a lot of new dresses every month, she always dresses shabbily

our very nice new house, we'll still miss our old flat

not having much money

spite of the rain, we all enjoyed the walk

1. Despite the fact that he loves Joan very much, he isn't going to marry her

2. In spite of she buys a lot of new dresses every month, she always dresses shabbily.

3. In spite of our new house is very nice, we'll still miss our old flat.

4. He wants to buy a car despite the fact that he does not have much money.

5.in spite of the fact that we all enjoyed the walk, it rained.

1. frightening

2. frustrated

3. depressing

4. stressed - relaxing

5. Từ điền :) ?

6. amazed

7. amused

8. bored

9. disappointed 

10. exciting