单项选择题

A．On housing.
B．On economy.
C．On marketing.
D．On choice of resources.
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单项选择题
A．Tall.B．Green.C．Massive.D．Long-lived.
A．Tall.
B．Green.
C．Massive.
D．Long-lived.
单项选择题
A．He had to wait for an appointment.B．He had other things to do first.C．His foot had seemed all right.D．His injury had kept him at home.
A．He had to wait for an appointment.
B．He had other things to do first.
C．His foot had seemed all right.
D．His injury had kept him at home.
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