Tính:(chi tiết)

a)5/-12 + -1/20

b)-24/48 + 333/555

c)4/7 + (-2)

XIII. Rewrite the following sentences keeping the same meaning.

1. My mother plays football very well. => My mother is …………………………………….

2. Mai likes playing badminton most. => Badminton ………………………………………..

3. Sports and games are very important in children's lives.

 => Sports and games play ………………………………………..

4. Children take part in many after -school activities when school finishes.

=> Children do …………………………………………………………..

5. Lan is very good at basketball. => Lan can ………………………………….

Put the words in the correct order.

1. go/do/weekend/on/always/fishing/parents/their?

…………………………………………….…………………………………………….

2. every/play/day/badminton/Lan/does?

…………………………………………….…………………………………………….

3. now/doing/she/aerobics/is.

…………………………………………….…………………………………………….

4. children/to/movies/do/the/how/go/the/often?

…………………………………………….…………………………………………….

5. often/video/ the/games/plays/nam/ afternoon/in

…………………………………………….…………………………………………….

6.a/the/sometimes/students/ picnic/have

…………………………………………….…………………………………………….

7. camping/they/go/do/sometimes           

…………………………………………….…………………………………………….

8. usually/his/swimming/with/friends/he/goes

…………………………………………….…………………………………………….

9. sailing/my house/ my classmate Nam/ on the river/ last summer/ went/with/I/near

…………………………………………….…………………………………………….

10. your eyes/swimming/ should/ when/ goggles/ you/you/go/wear/ to protect

…………………………………………….…………………………………………….

B,childs => children