16 it takes her about five minutes to go tos chool by bike

17 mai is fond of playing badminton

18 lan is interested in playing volleyball with her friends

19 they are usually free on the weekend

20 students learn how to reapir household appliances in electronics

IX.1 we don't have math today

2 lan's school has a big library

3 physic is my favourite subject

4 what is your favourite subject?

5 it is very interesting to go swimming in the summer

6 no subject is more difficult than math

7 I haven't english on tuesday

8 my favourite subject is english

9 We have a thirty-minute recess.

10 her classmate is fond of learning english

11 my brother goes to school by bike every day

12 the magazine is on the table

13 there are a lot of cattles in mr lam's farm

14 Hung is Lan's older brother

15 Mrs.Hong is Mai's mother

16 the armchair is opposite the table

17 pink and yellow are my favourite colour

18 the green washing machine is smaller than the white one

19 what is the nice weather today!

20 what are interesting books!

21 there are forty-two students in my class

22 the post office is on the right of my school

23 the movie theater is opposite their school

24 the black bicycle is more expensive than the red bicycle

25 mai is older than lan

26 our house is smaller than their house

27 vietnam is smaller than china

28 their village will have a new school

29 lan's school has a big library

30 the girl on the right corner of the room is mai