用所给词的适当形式填空。
1. I think that he _____ (arrive) tomorrow.
2. Michael is a _____ (Canada) boy.
3. What about _____ (buy) a sandwich for him?
4. The _____ (child) parents have to make desks and chairs for them.
5. How _____ (surprise) when he saw his bag back.
6. An egg is much _____ (healthy) than a bag of potato chips.
7. Daniel introduced _____ (he) in the letter.
8. Let's _____ (help) him to make it successful.
9. My brother is _____ (interest) in basketball.
10. Do you think the man need _____ (see) a doctor?