`VIII`
`1` . You ought to do exercise regularly
`2` . Eating too much chocolate is bad for your teeth
`3` . It's important to brush your teeth regularly
`4` . I prefer reading books to playing games.
`5` . Children had better not spend too much time on video games.
`6` . It takes me 10 minutes to walk from my house to school.
`7` . Don't forget to have a medical check-up
`8` . We will have a three-month vacation
`9` . Do you want to take part in our sport team ?
`10` . She received a new car for her birthday
`11` . Because Lan was sick , she was absent from class yesterday
`12` . My father gave up smoking cigarettes 2 months ago.
`13` . Would you please open your mouth , Hoa ?
`14` . My friend likes doing aerobics more than swimming
`15` . Why don't we go for a walk ?
`16` . How much is your violet dress,Nga?
`17` . Doing morning exercises everyday is very useful.
`18` . Remember not to stay up late at night.
`19` . Watching cartoons isn't as interesting as reading books
`20` . How deep is the swimming pool ?