It is suggested that more modern science and technology ____ text_英语解答

It is suggested that more modern science and technology ____ textbooks
a.added to b.be added to c.is added to d.are added to
选B 怎么判断和分析

人气：384 ℃　时间：2020-08-27 02:16:44

解答

这里suggest做建议的意思,所以要用虚拟语气,所以是suggest...(should) do
,should可以省略,所以是B