_men first learned to invent words is unknown,in other words

_men first learned to invent words is unknown,in other words,the origin of language is a mystery.
A,Wht
B,How
C,that
D,what
醉舞黄花 1年前 已收到1个回答 举报

setqwetweq342 幼苗

共回答了23个问题采纳率:82.6% 举报

is unknown决定了这不是疑问句.
that不能做引导词
只有HOW合适.

1年前

7
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