问题
选择题
The teacher was angry about his being late for class, but he behaved ______ nothing had happened.
A．as
B．even if
C．as if
D．even though
答案
答案：C
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The teacher was angry about his being late for class, but he behaved ______ nothing had happened.
A．as
B．even if
C．as if
D．even though
答案：C