看看你的应变能力，用所给单词的适当形式填空。

1. She _____ (return) the book to me yesterday.

2. The boy is the _____ (young) in our class.

3. The Yellow River is the second _____ (long) river in our country.

4. That girl was born in _____ (Greek).

5. Our team _____ (win) a game last month.

6. This isn’t take-away foot. It is home _____ (cook).

7. When I opened the door, I found Sandy _____ (play) on the floor.

8. Either my father or I _____  (work) on a farm this week.

9. My sister does some _____ (run) every morning, so she is very healthy.

10.Would you like _____ (have) dinner with me tonight?

关于胚胎抗原，下列说法不对的是（）。

A.是胚胎的某一时期组织细胞表达的成分

B.不存在于正常人组织或含量极微

C.肿瘤患者机体的胚胎抗原可大量增加

D.往往对某种肿瘤的诊断具有高度特异性

E.将其免疫动物可制得抗血清