句型转换。

1. She doesn’t like mooncakes because they are too sweet. (划线部分提问)

    _______  _______ she _______ mooncakes?

2. There are some elephants in the zoo. (改为单数意义的句子)

    _______  ________ elephant in the zoo.

3. Simon walks his dog every day. (用now 替换every day)

    Simon _______ _______  his dog now.          

4. My mother has an egg and a glass of milk for breakfast. (对划线部分提问)

    ________  ________ your mother ________ for breakfast?

判断下列各图所示体系的几何构造性质为：（）

A.几何不变无多余约束

B.几何不变有多余约束

C.几何常变

D.几何瞬变