New patients are requested to fill out a personal history form before being ______by the physician.

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问题 New patients are requested to fill out a personal history form before being ______by the physician.

选项 A、examine
B、examined
C、examines
D、examination

答案B

解析空格前面是be动词，所以(A)examine和(C)examines都要从正确答案中排除掉。be动词后面可以接-ing形式，构成现在进行时的句子；也可以接过去分词构成被动句。后面出现了by，因此应构成被动句。所以(B)examined是正确答案。

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