单项选择题

I can’’t find the recorder in the room. It________ by somebody.

A．must have taken
B．may have taken
C．may have been taken
D．should have been taken
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单项选择题
Women all over the world are_________ equal pay for equal jobs.
A．calling on
B．calling about
C．calling off
D．calling for
单项选择题
Give the books to_________ needs them for the English class and the writing class.
A．whomever
B．whom
C．who
D．whoever
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