句型转换
1. When spring comes, birds start singing. (就划线部分提问)
_______________________________ when spring comes?
2. This sign means people mustn’t swim here. (就划线部分提问)
_________________ this sign _____________________?
3. We can send E-mail with computers. (就划线部分提问)
_______ we ____________ E-mail _______________?
4. These questions can be answered in this way. （反意疑问句）
These questions can be answered in this way, _____ _____?
5. Sally prefers playing table tennis. So do I. （合并成一句）
___________________________________________