题目内容：

按要求完成句子。

1.His books are in the schoolbag. （否定句）

His books ________ _________in the school bag.

2.My sister plays tennis after class. （一般疑问句）

_________ your sister _________ tennis after class?

3.We like science because it is difficult but interesting. （对划线部分提问）

_________ _________ you like science?

4.Her father is forty years old. （对划线部分提问）

_________ _________ is her father?

5.Those are his radios. （变为单数句）

_________ his __________.