用a,an填空.1.This is( )book.2.That is（ ）orange.3.It is ( ) English book.4.What is this?It is ( )pen.5.It is ( ) quilt.
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用a,an填空.1.Thisis()book.2.Thatis（）orange.3.Itis()Englishbook.4.Whatisthis?Itis()pen.5.Itis()quilt.用a,
用a,an填空.1.This is( )book.2.That is（ ）orange.3.It is ( ) English book.4.What is this?It is ( )pen.5.It is ( ) quilt.
用a,an填空.
1.This is( )book.
2.That is（ ）orange.
3.It is ( ) English book.
4.What is this?
It is ( )pen.
5.It is ( ) quilt.
用a,an填空.1.This is( )book.2.That is（ ）orange.3.It is ( ) English book.4.What is this?It is ( )pen.5.It is ( ) quilt.
1.a
2.an
3.an
4.a
5.a
1.a
2.an
3.an
4.a
5.a
1。a
2.an
3.an
4.a
5.a