单项选择题

A．Unless
B．If
C．While
D．Though
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单项选择题
According to the conversation,what kind of weather is usual for March
A．Cold.
B．Very hot.
C．Cooler than on the day of this conversation.
D．Drier than on the day of this conversation.
单项选择题
When did Dr. Eric arrive in India
A．Several weeks ago.
B．Several months ago.
C．A year ago.
D．Two years ago.
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