问题
选择题
The police ____the murderer everywhere when he suddenly appeared in a theatre.
A．is searching for
B．were searching for
C．are searching for
D．were searching
答案
答案：B
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The police ____the murderer everywhere when he suddenly appeared in a theatre.
A．is searching for
B．were searching for
C．are searching for
D．were searching
答案：B