5.We should try to eat more vegetables

3.send　 to 4.in the countryside

6.Who was　 7. eat nothing　 8.don’t believe　 need

4.didn’t leave …until　 5 .What’s matter

1．Did …stop　 2.How long does　 3.look after

　　　　　　　 5.lie　 6.something　 7.much 8.some

　　　　　　　 9.keep 10 .hope

5.different　 6.playing 7.camping 8.healthiest　　 9.to open　 10 .twice

1．　　　　　 intereting 2. going 3.relaxing 4.sightseeing

16-20　　　　　　 BBBDA