单项选择题

Climate change will greatly_____wheat and rice production if nations don't take steps now.

A．fall
B．leak
C．lack
D． reduce
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单项选择题
By no means__________to her parents.
A．this is the first time has she lied
B．this is the first time does she tell a lie
C．is this the first time She has lied
D． is this the first time she was lying
单项选择题
The police are trying to find out the______of the woman,killed in the traffic accident.
A． evidence
B．recognition
C．identity
D．status
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