83. Of 120 minerals known to have been
used as gemstones, only about 25
are in common use in today jewelry.
答案D. 是不是改成:today's jewelry?
请问答案C. common use要不要改成 common used
be used in 还是be use in还是都可以?
举报
"in common use" is a phrase in which "use" works as a noun instead of a verb.
D, 你的改法正确.
in common use是什么意思呀?
如果use这里是名词,那么该句的谓语是什么呀?
请问主谓宾是25 minerals are in common use吗?矿石是常用?好像不大通呀?该怎么理解?谢谢
在已知的120种用作宝石的矿石当中,只有25种是现在珠宝中常用的。
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