单选题
1.
It has been reported that more than one kid ______ with the "Bird Flu"
A、
have been infected
B、
has been infected
C、
have infected
D、
has been infecting
【正确答案】
B
【答案解析】
分析选项,考查单复数以及主被动,由于主语是单数结构,且空后没有名词做为infect“感染”的承受者或主语kid是infect的承受者,所以本题为被动。因此选:B。
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