摘要：不定冠词an常用于元音发音开头的词前. 如:an apple, an hour, an honest boy, an English car. 注意: a useful dictionary (二)定冠词 定冠词用于特定的单数或复数名词之前.表示特定的人或事物.相当于“这个 .“那个 .“这些 .“那些 . 定冠词的常见用法有:
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用不定冠词a或an填空。
1．Maths is ________ useful subject．You can't drop it, I think．
2．It is ________ long time since we met last．
3．Tom's father is ________ artist and his mother is ________ engineer．
4．Last Sunday we had ________ good time．
5．There are only two letters in the word“us”, ________“u”and ________“s”．
6．Before he became ________ university student, he was ________ army man．
7．I spent ________ hour and ________ half writing the composition．
8．Do you have ________ answer to my question?
9．Have you got ________ ten-yuan note?
10．The car has ________ ugly colour．