they needn′t to do sth 还是 they needn′t do sth?

they needn′t to do sth 还是 they needn′t do sth? They __clean the park today ,do they --___.It's too dirty .A needn't ,Yes ,they do.B don't need to .No ,they don't. Needn't + do还是+ to do 英语 情态动词 You____ do i if you really don't want to .A.mustn't B.can't C.needn't D.shouldn'tPeople ______ breathe when they are under water.A.can't B.mustn't C.shouldn't D.needn'tThere's somebody at the door .Who ______ it be Is it the postm needn't 后面加to do 还是 do? Do you have to buy this hat?No,i needn't necessary为什么填needn't They need some help,________ they?A.don't B.needn't C.do D.need You ()leave,do you?But they must leave now.A.needn't to B.don't need to C.both A and B.为什么选择B Do you have to...可以用No,I needn't. don't need to do 与needn't do 有什么区别?还有needn't 是否只能用于一般现在时? needn't to they needn’t 什么diedjjjjjjjjjjjj Intelligent people need never work hard to be successful in the field where they are engaged in,___they?A.needn't B.don't C.do D.need you needn't take an umbrella ,it'syou needn't take an umbrella ,it's not going to rain -- Well ,I don't know ,it——do A might B need C Would D should 意思, needn't do和don't need to do有啥区别 They went to the park,_____?A.It's red B.do they C.did they D.don't they don't have to do sth 是否等于don't need to do sth 和needn't do sth needn't have done造句needn't have doneshould have doneremide sb to do sth造一个句子,有翻译