What is this?是用this isF还是this is a F还是it is F

来源：学生作业帮助网编辑：作业帮时间：2024/04/28 23:56:13

都行.
不过F 前面的不定冠词是 an. 因为F的发音是元音音素开头的.

This is an F
This is F

用this is 或者 it is
this 是近指 it 远近都可指

都可以，但是可数名词前可以加a，不可数名词不能加。

1.回答应该跟问句相一致，所以要用this
2.如果F是不可数，那么不用加a. 可数则要加a

对What is this/that？的回答必须用It is a（an)...“来回答，别的绝对不行。

采纳

这是绝对不可以this is 回答的

This is an F.
an或a不是以后面接的字母是元音还是辅音而定，而是以其发音的第一个音节是不是元音而定。F的音标是/ef/，/e/是元音，所以用an开头。
如果不严格的话，你另外两个回答也是可以的。

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