1. Keeping the environment clean is very important.
=> It's................................................................................................
2. Old car tires are recycled to make shoes and sandals.
=> People.........................................................................................
3. It's three months since I last spoke to Mr. Quang.
=> I haven't.........................................................................................
1. It's important to keep the environment clean.
2. People recycled old car tires to make shoes and sandals.
3. 1. I haven't spoke to Mr.Quang for 3 months.
1. Keeping the environment clean is very important.
=> It's....................................very important to keep the environment clean............................................................
2. Old car tires are recycled to make shoes and sandals.
=> People.................................recycle old car tires to make shoes and sandals........................................................
3. It's three months since I last spoke to Mr. Quang.
=> I haven't..........................spoken to Mr.Quang for three months...............................................................
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.en did you use the pen?
