句型转换

1.What were they doing? I don’t know. (合并为一个句子)

I don’t know what _________ _________ doing.

2. There isn’t any water in the glass. (改为同义句)

_________ _________ water in the glass.

3.His brother is not only a singer, but also an actor. (改为同义句)

His brother is a singer _________ _________ as an actor.

4. You mustn’t tell it to anyone. (改为祈使句)

Please _________ _________ it to anyone.

5. You can stay in the museum as long as you like. (对画线部分提问)

_________ _________ can we stay in the museum?