Unit 2 冠词

2.1 1.an 2.an 3.an 4.an 5.a 6.an 7.an 8.a 9.an 10.an 11.a 12.a

2.2 2.a fruit 3.a flower 4.a bicycle 5.a supermarket 6.a musical instrument 7.a class party 8.a famous painter

2.3 1.the，the 2.the 3.a，a 4.the 5.a 6.the 7.the 8./ 9.a，an 10./

2.4 2.breakfast 3.school 4.a kite 5.television 6.is writing/is doing homework