We should check our papers before we hand in them ,________

We should check our papers before we hand in them ,________ We will have to hand in our papers by the end of this month We should clean our h[ ]before meals We must hand in the exercises ,________ We must hand in our homework ________( in time,on time). 英语翻译Need we hand in our exercise books before class?Jim will we were our papers carefully when Tom handed his in we should wash our hands before we have we should brust our t____ before we go to bed Must we hand in our homework tomorrow must we hand in our homework now? on,we,in,our,should,homework,time,hand.连词组据