We mustn't use the things ____(pollute) the environment.

We mustn't use the things ____(pollute) the environment. we have received an order that we ___ the lab for a couple of daysA .mustn't use B .not use 为什么选B 不选A . We must full use of time.We mustn't w___ time. The sign No smoking means we mustn't smoke here we mustn't play in the kitchen 翻译意思 You-------miss the lesson ,though we --------------have it on Thursday.A mustn't;needn't B needn't;mustn't C mustn't;mustn't D needn't;needn't we____ use mobile phone when the plane take offA.may not B.shouldn't C.needn't D.mustn't we must line up in the corridor and you mustn't push .you mustn't take your schoolbag. We talk loudly when we see the sign on the right must mustn't need needn't 答案选mustn't ,谁可以帮解答 否定句改疑问句：You mustn't ride the bike.We shouldn't drink any juice. we mustn't do that again 选词填空!We（ ）pick the flower in the park.A.can’t B.don't C.mustn’t can't 和mustn't的用法?1.In Britain you ______ ride your bike on the pavement.A.can't B.mustn't2.We____forget to turn off the light before we leave.A.mustn't B.can't If we don't put an _____ in a microwave,we mustn't use it.A.thing B.bowl C.food D.object We mustn't shout loudly in the reading room.改为同义句,We mustn't shout ----( 4空)in the reading room. We mustn't play football in the street(祈使句)____ _____ football in the street look at the classroom rules .we mustn't-----(run)in the classroom.动词形式 mustn't needn't