是填“a”“an”“the”“x（就是代表不用填）”
1:__cats and__dogs are__lovely pets.
2:__Mr lee is__king man.
3:I can see__car on the road.
4:please give me__orange.
5:There is__girl in the classroom,__girl is__student.
6:__vegetables are tasty.
7:we all like__Hong Kong very much
8:please give me__stamp and__envelope
9:Macy eats__apple every day.
10:__china is__big country
11:I have__piano,__piano is white.
12:__brian is__good policeman.
13:__Mr smith is__Englishman.
14:Do you have__computer at home?
15:__sun is red,__sky is blue.