用括号内动词的适当形式填空。

1. He often              ( have ) dinner at home.

2. Daniel and Tommy             ( be ) in the Class One.

3. We                ( not watch ) TV on Monday.

4. Nick                ( not go ) to the zoo on Sunday.

5.             they             ( like ) the World Cup?

6. What              they often             ( do ) on Saturdays?

7.             your parents               ( read ) newspapers every day?

下列哪个是进行地层划分的依据（）。

A.层理

B.原生构造

C.岩石成分

D.岩石学性质