单项选择题

A．Nature has changed our environment over the years.
B．We must avoid wasting resources and polluting our environment.
C．Our resources are nearly used up.
D．Trips to other planets will help eliminate pollution.
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单项选择题
A．He asked for a specially-prepared dinner.B．He wanted an aisle seat.C．He requested a blanket for his baby.D．He asked for a seat near the front of the plane.
A．He asked for a specially-prepared dinner.
B．He wanted an aisle seat.
C．He requested a blanket for his baby.
D．He asked for a seat near the front of the plane.
单项选择题
A．He continues to look for other solutions to his problem.B．He decides to visit a doctor at his sister’s urging.C．Ha finally accepts that state of his condition.D．He shows doubts about the effect of drugs.
A．He continues to look for other solutions to his problem.
B．He decides to visit a doctor at his sister’s urging.
C．Ha finally accepts that state of his condition.
D．He shows doubts about the effect of drugs.
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