Questions 16-20 are based on the talk you’ve just heard.

What’s the Gwen’s purposes in talking to Jackit

What are the laboratory sessions primarily designed for...

单项选择题What are the laboratory sessions primarily designed for

What did the man think of the food at the school restau...

单项选择题What did the man think of the food at the school restaurant

What do we know about the motherA．She’s kept the bad ne...

单项选择题What do we know about the mother