单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．Customer and assistant.
B．Father and daughter.
C．Dentist and patient.
D．Teacher and student.

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填空题

In the conversations with their child, parents tend to use _________________ words because of the busy lives parents lead.

填空题

Telling stories about the past, present and future may be an effective way to enrich your child’s word power.

Questions 11 to 18 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。