1. Keeping the environment clean is very important.
\(\rightarrow\) It’s
2. They will show the time machine to the public when they finish it.
\(\rightarrow\) The time machine
3. He was delighted to receive his aunt’s letter.
\(\rightarrow\) He was delighted that
4. Old car tires are recycled to make shoes and sandals.
\(\rightarrow\) People
5. I’m very sad that I wasn’t accepted in that group.
\(\rightarrow\) I’m very sad not
6. It’s three years since I last spoke to her.
\(\rightarrow\) I haven’t
7. Tam doesn’t type as fast as she used to.
\(\rightarrow\) Tam used
8. “ Please turn down the radio for me”, said my father.
\(\rightarrow\) My father asked
9. Lan will be fifteen next week.
\(\rightarrow\) It is Lan’s
10. How long is it since you used the pen?
\(\rightarrow\) When ?
1. Keeping the environment clean is very important.
→ It’s very important to keep the environment clean.
2. They will show the time machine to the public when they finish it.
→ The time machine will be shown to the public when it is finished.
3. He was delighted to receive his aunt’s letter.
→ He was delighted that his aunt sent him a letter.
4. Old car tires are recycled to make shoes and sandals.
→ People recycle old car tires to make shoes and sandals.
5. I’m very sad that I wasn’t accepted in that group.
→ I’m very sad not to be accepted in that group.
6. It’s three years since I last spoke to her.
→ I haven’t spoken to her for three years.
7. Tam doesn’t type as fast as she used to.
\(\rightarrow\) 7. Tam used to type faster than she does now.
8. “ Please turn down the radio for me”, said my father.
→ My father asked me to turn down the radio for him.
9. Lan will be fifteen next week.
→ It is Lan’s fifteenth birthday next week.
10. How long is it since you used the pen?
→ When did you use the pen?
1. Keeping the environment clean is very important.
=> It's very important to keep the enviroment clean.
2. They will show the time machine to the public when they finish
=> The time machine will be shown to the public when they finish
3. He was delighted to receive his aun'ts (hok hiểu chỗ này) letter.
=> He was delighted that his aunt's letter send to him.
4.Old car tires are recycled to make shoes and sandals.
=> People recycled old car tires to make shoes and sandals.
5. I'm very sad that I wasn't accepted in that group
=> I'm very sad not to accept in that group.