EX2

1 were - what would you do

2 exercised - would be

3 had- would built

4 tidied- wouldn't be

5 were- would grow

EX3

1 If there weren't so many billboards in our city, people could enjoy the view

2 If there weren't so much light in the city at night, we could see the stars clearly

3 If we didn't turn on the heater all the time, we wouldn't have to pay three millions dong for electricity for a months 

4 If the karaoke bar didn't make so much noise almost every night , the residents wouldn't complain to its owner

5 If she didn't work in a noisy office, she wouldn't have a headache after work everyday

cái tờ thứ 2 í là bạn không chụp tên đề nên mình không làm , bạn có thể nói tên đề cho mình ở phần comment

II rewrite the sentence ....

1 If nam weren't too young , he could take part in the project to be trained to become an astronaut 

2 if he took any exercise, he wouldn't so unhealthy 

3 if we had got any match, we could light a fire

4 if he helped me, i would ask him for help

5 if i knew his address, i could write to him

6 if we didn't live so far away , we would visit you very often

7 if that book weren't too expensive, i would buy it

8 if we could afford it, we would go out very often

9 if we had any money , we could go on the trip

10 if i hadn't to work late tomorrow, i could join your party

11 if i didn't have got a lot of work to do, i could go home for luch now

12 if she were a millionaire , she could buy a house in tokyo

13 if Nhi weren't ill, she could go to school