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which与when,题目在下面,istheNewYear'sDay?it'sJanuary1st.awhenbwhich是两个都可以,还是用when?如果用when的话,which为什么不可以呢?iwasbornonMay30th.那特殊疑问句为什么是Whenwereyouborn?而不

题目详情
which 与 when ,题目在下面,
____is the New Year's Day?
it's January 1st.
a when b which
是两个都可以,还是用when?如果用when的话,which为什么不可以呢?
i was born on May 30th.
那特殊疑问句 为什么是 When were you born?而不是When were you born on?
加on 为什么不行呢?
▼优质解答
答案和解析
第一题通常应该说when
which做疑问代词的时候通常是说后面那一个范围内的哪个.而这里新年(new year's day)就是一天,是单数而不是复数构成的一个范围,所以不合适.请参考
Which is your favorite subject?会有若干个subject让你选.
第二题你可以把问句还原成陈述句就比较容易看明白了
you were born on when.这显然不对,因为when是副词,而on是介词,介词后面不可以用副词做宾语.回到问句中,也就是when本身就相当于on which day了.