一、写出下列单词的复数形式。
1.bus buses 2.box boxes 3.glass glasses 4.class classes
5.watch watches 6.mango mangoes 7.firefly fireflies 8.sheep sheep
9.people people 10.man men 11.woman women 12.apple apples
13.family families 14.library libraries 15.baby babies 16.boy boys
17.toy toys 18.child children 19.foot feet 20.strawberry strawberries
21.horse horse 22.policeman policemen 23.dress dresses 24. fish fish
25.tooth teeth 26.country countries 27. foot feet 28.dragonfly dragonflies
29.me us 30.building buildings 31. cloth clothes 32. this these
33. that those 34.circle circles 35.story stories
二、写出完全形式。
1.who's who is 2.she's she is 3.he's he is 4.what's what is
5. where’s where is 6.we're we are 7.you're you are 8.that's that is
9. I'm I am 10. isn't is not 11.aren't are not 12.they're they are
13.don't do not 14.let's let us 15. can’t can not 16. it's it is
17. I’ve I have 18. I’d I would 19. hasn’t has not