选词填空。
1. The ugly duckling looks __________ (into, in) the water.
2. I __________ (is, am) a beautiful swan!
3. He __________ (see, sees) two big swans.
4. The ugly duckling has __________ (no, not) home.
5. In winter, it is __________ (cold, hot).
6. He __________ (swim, swims) away.
7. The three yellow __________ (ducklings, duckling) play together.
8. The three yellow ducklings sit on __________ (she, her) back.
9. The big egg opens __________ (late, later).
10. Mother Duck __________ (sit, sits) on the eggs.