用不定冠词a,an 填空；1What’s this?It’s__bus.2Is this__orange orange?Yes,it,is.3This isn‘t__old bag.It is__pen.4He is__teacher.5That is __English car.

用不定冠词a,an 填空；1What’s this?It’s__bus.2Is this__orange orange?Yes,it,is.3This isn‘t__old bag.It is__pen.4He is__teacher.5That is __English car.
用不定冠词a,an 填空；
1What’s this?It’s__bus.
2Is this__orange orange?Yes,it,is.
3This isn‘t__old bag.It is__pen.
4He is__teacher.
5That is __English car.

用不定冠词a,an 填空；1What’s this?It’s__bus.2Is this__orange orange?Yes,it,is.3This isn‘t__old bag.It is__pen.4He is__teacher.5That is __English car.
1、What's this?It's （a） bus.
2、Is this （an） orange orange?Yes,it,is.
3、This isn't （an） old bag.It is （a） pen.
4、He is （a） teacher.
5、That is （an） English car.

1.a 2.an 3.an a 4.a 5.an