1. sore eyes

2.shouldn't

3. What's

4.go swimming

5.won't

4 nhìn lộn với 5,đây mới đúng nè

4.C

5.A

Ex5

1.toothache

2.fever

3.backache

4.stomachache

Ex6:

1.A

2.C

3.A

4.A

1)C

2)D

Does your sister play sports with you after school ?

(-3).4+(-2)(-5)-6.8

= -12+10-48

=-2-48

=-50

420:[214-(18-16)² ]

=420:[214-2² ]

=420:[214-4]

=420:210

=2

5¹⁰:5⁸+(28-25)³-2016⁰

=5²+ 3³-1

=25+27-1

=52-1

=51

  40:(-17+12)+9

=40: (-5)+9

= -8+9

=1