I don't know ______he is a student 填什么呢 是what how where if why woh 选一个

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I don't know ______he is a student 填什么呢 是what how where if why woh 选一个

I don't know if_he is a student
意思是是否
翻译
我不知道他是不是一个学生
因为主句是不知道,所以从句用if

应该是how

if

if 是否
翻译成 我不知道他是不是一个学生
希望能帮的上你！

if 我不知道他是否是个学生。

I don't know __if____he is a student
what how where if why not
这是if引导的宾语从句
句意为：我不知道他是否是一个学生
如果选其他疑问副词，后面的从句必须是疑问语序
欢迎追问哦！

I don't know ______he is a student , 填if ，意思为“是否”引导宾语从句

if

I do not know if/whether he is a student。
中文翻译。我不知道他是否是个学生，
其他的代入，what who不符合，
因为he is a student是个完整语句。
其他的代入不符合语句。

I don't know. “i don't know you know i don't know sorry,I don't know. i don`t know much I don't really know. 英语；I don't know I don't know miss I don't know him. I don't know now 翻译 i don't know So know,I don't I don't know her i don't know anything I know enough to know that I don't know i don't know what i I don't think I know you I don’t no I don't know I don't knw I don't know翻译中文,