What did people use before paper__________?A.invented B.was
What was invented before the car?为什么
When ______ the car ________?选项:a、did,invent b、was,invented
Who ▁the paper in the world?Cai Lun▁.A invented;did B was in
It was a long time before people began to use written langua
____paper was invented by ____Chinese people a long time ago
What did people do before its invention?英文翻译
what did kangkang do before he ___the candles out?A.blow B.b
Jame watt __ the steam engine A was invented B invented C ha
Whom was tea ( ) A invent by B invented of C invented by D i
___ he busy the day before yesterday?A、Were B、Was C、Did
英语短文改错题The car was invented about a hunderd years before,You
she was not the woman__she was before.为什么不选c a what b that c