单项选择题

Questions 18 ～21 are based on the monologue about taking care of dogs. How long should food be left before a dog

A．As long as possible,
B．At least 30 minutes.
C．All day.
D．No more than 30 minutes.
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单项选择题
What does the woman mean
A．She doesn’t need the job.
B．She hasn’t got a job yet.
C．She has got a good job.
D．She is going to start work soon.
单项选择题
When does the dialogue take place
A．A weekday afternoon.
B．A weekday evening.
C．A weekend afternoon.
D．A weekend evening.
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