The best of team - Sakura

1. It’s very important to keep the environment clean.

2. The time machine will be shown to the public when it is finished

3. He was delighted that he received his aunt’s letter.

4. People recycle old car tires to make shoes and sandals.

5. I’m very sad not to be accepted in that group.

6. I haven’t spoken to her for three years

7. Tam used to type faster than Tam does now

8. My father asked me to turn down the radio for him

9. It is Lan’s fifteenth birthday

10.When did you use the pen ?

$1.$ It's very important to keep the environment clean.

- Gerund +  S + tobe + adj = It + tobe + adj + to V.

$2.$ The time machine will be shown to the public when it is finished.

- Câu bị động thì tương lai đơn: S + will + be + V (P_II) + (by O).

$3.$ He was delighted that he received his aunt's letter.

$4.$ People recycle old car tires to make shoes and sandals.

$5.$ I'm very sad not to be accepted in that group.

$6.$ I haven't spoken to her for three years.

$7.$ Tam used to type faster than she does now.

- "used to" chỉ hành động đã xảy ra và kết thúc ở trong quá khứ.

$8.$ My father asked me to turn down the radio for him.

$9.$ It is Lan's fifteenth birthday next week.

$10.$ When did you starting using the pen?

$@vanw$