第一节
听下面五段对话。每段对话后有一个小题，从题中所给的[A]、[B]、[C]三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有十秒钟的时间来回答有关小题和阅读下一小题。每段对话只读一遍。
What does the man think of Sarah’s travel to Beijing

A．grandparents take care of younger children
B．young people be careful about their parents
C．old women spend more time taking care of their own health
D．child care by grandmas be considered

[A] Young kids are easy to catch diseases.
B. They like to run, climb, jump and explore new things.
C. They can’t walk steady and need protection from their parents.