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题目内容
（河北农业大学大学英语Ⅳ）
【单选题】Since no one knew how the disease spread, they ________ everything including mosquitoes, swimming pools, and people from other neighborhoods.
A、were suspicion of
B、should be suspicious of
C、were suspicious of
D、should be suspicion of
A、were suspicion of
B、should be suspicious of
C、were suspicious of
D、should be suspicion of
参考答案