(八)题4-21、题4-22，画出全剖的左视图；题4-23、题4-24，画出半剖的左视图。
参考答案：
根据句意，用适当的单词填空。
1. —_______ you have a basketball? —Yes, I _______.
2. —Does Gina _______ a math book? —No, he _______.
3. —_______ Chi-Young have a tennis racket? —Yes, _______ does.
4. _______ play volleyball.
5. My brother _______ have a notebook.
6. She _______ sports every day.
7. That sounds _______.
8. My sister _______ five baseballs.
9. —Do you have _______ ball? —No, we _______.
10. I don't like math. It's _______.
禁止新建不符合国家规定的哪些发电机组？
