单项选择题
A．She isn’t having much trouble. B．She understood the reading. C．She understands very little. D．She hasn’t been doing much of the reading.
A．No, with pleasure. B．No, I won’t sign. C．Yes, I can see it. D．Yes, thanks.
A．The man’s wife. B．A diner. C．A salesgirl. D．A customer.