__we draw useful lessons from them,we may turn difficulties to a good account.A,to provide B,provided C,Given D,to give.答案选择B,其他为什么不对?

__we draw useful lessons from them,we may turn difficulties to a good account.A,to provide B,provided C,Given D,to give.答案选择B,其他为什么不对? les Les les les useful, useful Provided we draw useful lessons from them,we may turn difficulties to good account.翻译· draw Based on 的用法Based on this fact,some people draw a conclusion that studing is very useful .这句话对吗?为什么不用Basing on draw out ,draw up ,draw les是什么意思 les'find LES都有哪几种 les可分几种 les分几种 ( ) __we like bananas ? A,Do B, Does useful是什么意思