1 Japanese

2 chatting

3 pratice

4 because

5 songs

1 has become

2 has never won

3 haven't seen

4 Have-seen

5 has increased

6 have-ever written

7 Have-ever met

8 have already seen

9 has sent

10 hs given

2 Van's brother usually rides a morotorrbike to work

3 Linh doesn't like playing board games

4 My sister finds arranging flowers interesting

5 My father enjoys  doing gardening at the weekend

1 went

2 broke, was

3 was, came

4 didn't do

5 were

6 listen

À nó là 2,5

Nếu mà đơn vị quãng đường thì thường là km