一、按要求写单词。(10分) 1. right (反义词) left 2. happy (反义词) sad 3. children (单数形式) child 4. play (第三人称单数形式) plays 5. dance (名词) dancer 6. have (第三人称单数形式) has 7. hike (-ing形式) hiking 8. fast (反义词) slow 9. does not (缩写形式) doesn’t 10. cross (名词形式) crossing