单项选择题

Who is the speaker.

A．An economist
B．A film critic
C．A radio broadcaster
D．A sports commentator
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单项选择题
Now that you have mentioned the report, I remember ______ that it will have to be rewritten because I have found quite a few mistakes in it.
(A) to tell you
(B) to have told you
(C) having told you
(D) telling to you
单项选择题
The research committee ______ representatives from countries that have their researchers and scientists stationed in Antarctica on a constant basis.
(A) is made of
(B) is consisted of
(C) is composed of
(D) is formed of
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