一道高一英语单选题?为什么?Thedangerousvirusinthefollowingfewweeksinthelabratorycancausefataldiseases.A.studyingB.studiedC.tobestudiedD.havingbeenstudied

Question

一道高一英语单选题?为什么?
The dangerous virus ______ in the following few weeks in the labratory can cause fatal diseases.
A.studying B.studied C.to be studied D.having been studied

Answer 1

C
原因：病毒与研究的关系是被动关系,所以A排除；
横线后说接下来的几周,说明“研究”这个动作还没有发生,所以要有所选词要有即将发生的意思,而B中的过去分词表完成的意思,排除B;同时D也有完成的意思,也能选
C选项既有被动的意思,又有即将发生的意思,所以选C