试题：
| 用am, is, are填空。 1. What _____ those? _____ they birds? 2. He _____ my friend. _____ your friend a boy or a girl? 3. This _____ his ruler. Where ______ my ruler? 4. I _____ in Class Three. ______ you in Class Three,too? 5.Those ______ their apples. Where ______ his apples? |
系动词
2016-05-16
答案：
我来补答展开全文阅读