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