题目：
用所给词的适当形式填空。
1. I have an _______ (America) friend.
2. Henry _______ (match) the persons with their names _______ (quick).
3. What _______ (be) the day before yesterday?
4. He_________ (train) hard for the next football match.
5. I hardly ever watch basketball _______ (match) on TV.
6. She ________ (live) ten whole _______ (mile) from school.
7. Can he _______ (come) over to my house this afternoon?
8. Will you _______ (be) free the day after tomorrow?
9. We are busy _______ (train) the horse for the next race.
10. You are free _______ (do) what you want to do.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：A解析：Egg yolks, nuts, seeds, and liver are all high in folic acid. The other options aren't good sources of folic acid.
