单项选择题

A．He will only be available in the afternoon.
B．It’’s not his office hour.
C．He doesn’’t have time.
D．He is too tired after class.
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问答题
In today’’s society, in which information is spread in a quicker way than ever before, _____________________ (年轻人面临的不仅是机遇而且也是挑战).
填空题
A．ButB．AndC．BesidesD．Even
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