____,many centuries had passed before man learned to use fir
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____,many centuries had passed before man learned to use fire.
A.Since it is known to us all B.As long as it is known
C.As is known to us all D.What is known to us all
Which one?Why?
A.Since it is known to us all B.As long as it is known
C.As is known to us all D.What is known to us all
Which one?Why?
选C,但是楼上说的不全对,应该是as 和 which 都可以引导非限定性引导定语从句(有逗号的定语从句),可以指代前面的一句话.但是as有“正如,正像”的意思,可以置于句首句中,which只能是居中
《What is the first metal that man learned to use》
When Tom learned he had passed the exam he ____ song.
mary had learned some chinese before she came to china翻译汉语大神
he( )to play ( )before he was 11 years old A had learned ,th
It was not until man had learned how to make iron and steel
The music passed from father to son for eight centuries has
early man-----(eat)raw meat before they----(know)how to use
Many a man ____ come to help us.
we use a or an before nouns when we mention them for the fir
i have been learned English before. i had been learned Engli
英语词汇 when he learned that he had passed the entrance exam,he
so ____,Nobel had to die before he realized what his life为什么