单项选择题

Questions 19 to 21 are based on the conversation you have just heard.
What does John say about their annual vacation （）

A．They are given two weeks each.
B．They like to spend it together.
C．They have to take it by turns.
D．They each take a week.

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单项选择题

What is a consequence of excessive sugar intake worldwide（）

A．It contributes to 35 million noninfectious disease-related deaths a year.
B．It has increased the death toll nearly three times in the past 50 years.
C．It contributes to the rise of prices of sugar and sugary foods.
D．It has increased the global obesity rate to some 17 percent.

单项选择题

What do we learn about the woman（）

A．She has been invited to give a talk.
B．She is going to meet the man at 9:30.
C．She cannot attend the presentation.
D．She cannot work because of her toothache.

Questions 19 to 21 are based on the conversation you have just heard. What does John say about their annual vacation （） 您的浏览器不支持 audio 元素。

Questions 19 to 21 are based on the conversation you have just heard.
What does John say about their annual vacation （）