`Ex4 :`

`1.d`

`2.g`

`3.c`

`4.f`

`5.h`

`6.b`

`7.a`

`8.e`

`Ex5:`

             Should                             |        Shouldn't

1. see the dentist                         |   ko có ( lời khuyên phù hợp )

    brush your teeth twice a day  |

2. take a hot bath                        | ko có ( lời khuyên phù hợp )

3. see the doctor                          | eat too much

    eat healthy food                      | eat many candies

4. drink hot water                        | drink cold water

 1. d

 2. g

 3. c

 4. f

 5. h

 6. b

 7. a

 8. e

EX 5: 

 1. 

Should: see the dentist, brush your teeth twice a day

Shouldn't: eat many candies, eat to much, eat a lot of fruits and vegetables 

 2. 

Should: take a hot bath

Shouldn't: (không có)

 3.

Should: see the doctor,  eat healthy food

Shouldn't: eat too much, eat many candies, eat a lot of fruits and vegetables 

4.

Should: drink hot water 

Shouldn't: drink cold water