单项选择题

A．It was getting dark.
B．He was afraid of being blamed by his friend
C．The birds might have flown away.
D．His friend would arrive any time.
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单项选择题
A．Tony should continue taking the course.B．She approves of Tony s decision.C．Tony can choose another science course.D．She can t meet Tony so early in the morning.
A．Tony should continue taking the course.
B．She approves of Tony"s decision.
C．Tony can choose another science course.
D．She can"t meet Tony so early in the morning.
单项选择题
A．The underground oil resources have not been affected.B．Most of the desert animals and plants have managed to survive.C．The oil lakes soon dried up and stopped evaporating.D．The underground water resources have not been polluted
A．The underground oil resources have not been affected.
B．Most of the desert animals and plants have managed to survive.
C．The oil lakes soon dried up and stopped evaporating.
D．The underground water resources have not been polluted
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