1c 2a 3d 4d 5b

1a 2b 3c 4d 5c 

1b 2b 3c 4c 5a 6c 7c 8d 9a 10a 11b 12d 13a

listen -> listening

reads -> read

it -> them

learns often -> often learns

writes -> write

like -> likes

learn -> learns; want -> wants

4b 5c 

1 bicycle

2 motorbike 

3 car

4 plane

5 ship

6 train

7 underground

8 bus

1 obeyance

2 safety

3 unhealthy

4 carelessly

5 illegal

6 flight

7 strictly

8 signaled

9 prohibitive

10 warning 

7 How much water should we drink everyday?

8 What should I not do at a Chinese restaurant?

9 You should inform your parents before you go

10 Josh shouldn't devote all of his free time to playing games

1d 2c 3a 4b 5d 

1d 2c 3b 4a 5d 

1d 2c 3b 4b 5c 6b

7d 8c 9b 10d 11c 12d 13a 14b 15a 16d 17c 18a 19c 20d 21a 22b 23c 24a 25b 1a 2b

1c 2d 3a 4b 5a

language

do

why

speaking

vocabulary

writing

to

on

does

favorite

You'd better be here for me

speak - write - because

1 A new shopping mall has been built in my neighborhood recently

2 If only he knew how to design a website