海陆变迁的主要原因有①气候变化 ②人类活动 ③地壳的变动 ④海平面的升降．

题干

海陆变迁的主要原因有（　　）

①气候变化 ②人类活动 ③地壳的变动 ④海平面的升降．

A：②④

B：①②

C：③④

D：①③

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听独白，完成信息记录表。

How far is the school from Peter's home?	It's about kilometers.
How does Peter go to school?	He goes .
How many students are there?	There are students.
Where is the park?	It's the school.
What does Peter do in the park?	He plays with his friends.