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问题描述：
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1.用a或an填空
——orange 2.——exercise book 3.——unliversity 4.——question 5.——old man 6.—year
7.——ymbrella 8.——useful book 9.——artist 10.——idea 11.——english teacher
12.——wrong answer 13.——japaneae 14.——island 15——interesting story 16.——honest child
2.用a.an或the填空
mr.smith lives in——town named gumtree.——town is very beautiful and clean.
l have ——lot of work to do this afternoon.
l can see ——animal in the tree.it look like ——monkey.
there are four seasons in——year.——first sesson i spring.it's——best one of ——four.
答
1、an
2、an
3、an
4、a
5、an
6、a
7、an
8、a
9 、an
10、an
11、a
12、an
13、a
14、an
15、a
16 、a
2：a、the a an、a a、The、the、a
5.——woman behind——tree is——old friend of my mother's.