英语could you tell me__that prevents her from being as happy as before.a.what it isb.it is whatc.how it isd.it is how
问题描述：
英语could you tell me__that prevents her from being as happy as before.
a.what it is
b.it is what
c.how it is
d.it is how
答
答案：a.what it is
解析：tell me后面接宾语从句，在宾语从句中it是形式主语，is是谓语，that prevents her from being as happy as before是真正主语，what充当表语。
在这道题目里要特别注意that prevents her from being as happy as before是宾语从句里面的一个主语从句。
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答
你好
这个题目选A
解析：
你可以把从句单独拿出来分析,如果是单独的句子,就是what prevents her ....,所以肯定不是HOW,然后that是代词做从句的主语的.B的话IT也是形式主语,两个主语肯定不对嘛.
或者你可以把what it's that 看成做从句主语.
希望帮到你哦，不懂欢迎追问
答
肯定选A 宾语从句中的强调句
答
选a。望采纳，谢谢。
答
答案是A吧选项是一个宾语从句,而后面的that prevents her from being as happy as before是宾语从句里面的表语从句,整个句子的意思是：你能告诉我什么阻止了她像原来那么开心了么（翻译的不大好啊）,也就是问的是“...