--Must I clean my room today?--No,you___ A mustn't B needn't我想Must的否定形式应该是mustn't 但答案为甚给的是needn't呢?

连词成句 must ,my,clean,I,my,and,room,clothes must i clean my room now ?---no, you ___ .but you must clean it tomorrow .A.must B. mustn't C.need D.needn't写解释 用must,need提问用什么答如；must I finish my homework today?Need I clean the room now? 英语Must I clean up my room now?---Must I clean up my room now?---__________________A.Yes,you need.B.No,you needn't --------------为什么选B?-----A错哪了------说明原因(详细一点)---- I must clean my bedroom.(改为被动）顺便翻译一下,并说出被动语态的什么结构 Need I clean the room?与Must I clean the room?有什么区别 I always clean my bedroom（ )Sundays填空 Yesterday I-my mother clean the house i clean my bedroom ____ Saturday afternoon. I must clean the room.改成被动语态 Must I clean the room now No you don't_______ ------Must I clean the room? 的肯定回答 must i clean the room nowno,you___mustn'tneedn't must i clean the classroom right now?No,you ( ) The classroom isn't clean.Whose ____is it to clean,it?再问几题My mother is ill in___.I must look after her.My father works in a___.He makes many things there. I often help my mother clean the room.如果clean改成to clean对吗? I’m going to clean my room tonight.对clean my room 提问. --Must I clean my room today?--No,you___ A mustn't B needn't我想Must的否定形式应该是mustn't 但答案为甚给的是needn't呢?