1.The teacher said to the students,"Don't waste your time

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1.The teacher said to the students,"Don't waste your time
改成The teacher______the student ____ _____waste _____time.怎么改还有原因
2We knew who the murberer was after the police sovled the case.
We ____ ____who the murderer was ____the case.同上
我需要

The teacher told the students not to waste their time.
"tell sb (not) to do sth"告诉某人不要做/做某事.至于原因,意思基本相近就行了,没什么原因.
We didn't know who the murderer was until the case… 题中,“警方解决了这个案件之后,我们知道了谁是凶手.”改成“我们并不知道谁是凶手直到警方解决了这个案件”
补充：until前一定是否定,且until=till.
多背一些词组句式吧.对你有好处的.

1.The teacher said to the students,"Don't waste your time The teacher said to his class,"Don`t waste your time!"直接引语改间句子改为间接引语1.The teacher said to his class,"Don't waste your ti The teacher said to the students,"Don't make any noise."同义句 The teacher said to the students,“Open your books,please” my father said to me,"don't waste your time."改为间接引语 don't waste your time thinking about the past 句子成分分析 Try ___ your time any more. A.don't waste B.not to waste C.t Don't waste your time on a man,who isn't willing to waste th Don‘t waste your time on a man,who isn‘t willing to waste th Don‘t waste your time on a woman,who isn't willing to waste 1.The teacher said to us ________（angry）“Don't talk in class