英文 it is necessary that the result of an experiment______a.be checked and recheckedb.would be checkedc.should check and recheckd.is checked and rechecked
问题描述：
英文 it is necessary that the result of an experiment______
a.be checked and rechecked
b.would be checked
c.should check and recheck
d.is checked and rechecked
答
选A
a.be checked and rechecked
答
it is necessary that the result of an experiment______选A这是一句虚拟语气结构是it is +necessary +that +(should)+ do...因为实验的结果是被检查的,所以用被动完整的句子是it is necessary that the result of ...