用不定冠词a和an填空.
1.
Tom is _______ honest boy.
2.
.I have _______ one—year—old sister.
3.
My grandmother told me _____ interesting story.
4.
Here is _____ photo of my family.
5.
I spend _____ hour from my school to supermarket.
6.
He is _____ European,but he can speak Chinese well.
7.
I like physics and I want to be _____ engineer.