单项选择题


Questions 19 to 21 are based on the conversation you have just heard.

A．Because they don’t get much practice with them.
B．Because they often use them in their work.
C．Because they have to pass a test.
D．Because they plan to become doctors.
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单项选择题
A．Income tax is collected from even the poorest citizen.B．State tax is collected from even the poorest citizen.C．Social security tax is collected from even the poorest citizen.D．Sales tax is collected from even the poorest citizen.
A．Income tax is collected from even the poorest citizen.
B．State tax is collected from even the poorest citizen.
C．Social security tax is collected from even the poorest citizen.
D．Sales tax is collected from even the poorest citizen.
单项选择题
A．She will attend a meeting.B．She will attend the rally.C．She will go to class.D．She will go on a picnic.
A．She will attend a meeting.
B．She will attend the rally.
C．She will go to class.
D．She will go on a picnic.
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