问题 填空题
给下列单词归类。
ninety    tire    park    blackboard    wheel
fifty      desk    twelve     chair    hotel
chain    office building
1. city: ______________________________________________
2. bicycle: ____________________________________________
3. number: ____________________________________________
4. classroom: __________________________________________
答案

1. park, hotel, office building

2. tire, wheel, chain

3. ninety, fifty, twelve

4. blackboard, desk, chair

填空题
问答题