用a/an填空 1 Is it( )Chinese book or ( )English book?2 This is ( )ring,and it is ( )orange ring.
3 Mary is ( )English teacher.Tom is ( )Chinese teacher
4 This is( )bike,It's( )old bike.
5 T his is ( )telephone number
6 That is ( )ID card
7 I lost my keys.I t's( )set of keys
8It's ( )apple,not( )pear
9 This is( )peach.That's( )orange
10 You have ( )banana,but I have( )egg.