一、 在下列单词前面加上适当的不定冠词(a或an).
1. ________ teacher 2. ________ English book
3. ________ old man 4. ________ black cat
5. ________ apple 6. ________ box
二、 定冠词the填空, 不需要填的地方画X.
1. I like ________ red jacket.
2. Look at ________ black bird.
3. I play basketball on ________ Sundays.
4. Let's go ________ home.
5. That is my ________ watch.