Mary as well as her teachers and classmates ________ with vaccine against the coronavirus already.

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问题 Mary as well as her teachers and classmates ________ with vaccine against the coronavirus already.

选项 A、have been injected
B、has been injected
C、were injected
D、was injected

答案B

解析考查就远一致及被动语态。句意：玛丽和她的老师同学一样，已经接种了疫苗来抵御病毒。其一，as well as遵循“就远原则”，谓语动词此时用单数，排除A、C两个选项；其二，因为句尾有already，且注射疫苗这件事情对现在产生了影响，要用现在完成时。故选B。

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