用所给单词的适当形式填空。
1. It is raining ______ (heavy), I couldn't go out.
2. We enjoyed ______ (oneself) last Sunday.
3. We are excited ______ (see) each other.
4. The old man is very ______ (friend) to me.
5. Look, the sun is shining ______ (bright).
6. —Let's go ______ (skate). —Good idea.
7. Monday is the ______ (two) day of a week.
8. I ______ (can) ride a bike when I was six years old.
9. My brother fell off the bike yesterday and hurt ______ (he).
10. ______ (run) in the morning is good for you.
