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1.Mr lan went to work by car some years ago, but now he cycles. 
->Mr lan used to go to work by car some years ago, but  now he cycles(S+used to+V nguyên thể)
2.Scientists will find solutions to reduce pollution in our city.  
->Solutions will be found by scientists to reduce pollution in our city(câu bị động ở thì lương lai đơn: S+will be+V cột 3)
3.My new bike is over there(mine).
->That new bike is mine(đại từ sở hữu)
Exercise 2:Rearrange words to build the sentences
1:be/we/that time /next Sunday/visiting/grandparents /our (có cả từ "will" nữa nhé!)
->We will be visiting our grandparents that time next Sunday
2:is/Christmas/a/popular /many countries/pestival /in
->Christmas is a popular festival in many countries.
3:people /2025/won't /use/until / year /flying cars
->People won't use flying cars until year 2025.
4:off /lights /fans/Turn /before /leaving room /save/ energy /to /and
->Turn off the lights before living room to save the energy(câu này hình như là cậu ghi sai đề, không có"and" thì phải :>>>)
5: end/moving/was /film/of the /the
->The end of the film was moving

Chúc học tốt!

Lần sau nhớ ghi đề cẩn thận đấy:)))

1. Mr. Lan used to work by car  some years ago

2. Solutions will be found to reduce pollution in our city by scientists

3. The bike over there is mine

1. We will be visiting our grandparents this time next week

2. Christmas is a popular festival in many countries

3. People won't use the flying car until 2025

4. Turn off lights and fans before leaving room to save energy

5. The end of the film was moving