问题
选择题
As usual，he put on a show as though his trip __________a great success.
A．had been
B．has been
C．were
D．was
答案
A
as though引导的与过去相反的虚拟。
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As usual，he put on a show as though his trip __________a great success.
A．had been
B．has been
C．were
D．was
A
as though引导的与过去相反的虚拟。