单项选择题

Since then I ______ the mail.

A．am expecting
B．expected
C．was expecting
D．have been expecting
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单项选择题
I'm afraid Mr. Brown isn't in. Would you like to ______ a message
A．give
B．leave
C．carry
D．take
单项选择题
All ______ is a continous supply of the basic necessities of life.
A．what is needed
B．for our needs
C．the thing needed
D．that is needed
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