there seem to be否定式There_______ too much work to do tomorrow.A.seems not to beB.seems to be notC.don't seem to beD.isn't seem to be否定式不是there doesn't seem to 那这里没有,该选什么?

there seem to be否定式There_______ too much work to do tomorrow.A.seems not to beB.seems to be notC.don't seem to beD.isn't seem to be否定式不是there doesn't seem to 那这里没有,该选什么? a祈使句的否定式可说成Don't be . have to的否定式是不是don't.have.to be going to do的否定式是什么? 为什么must be的否定式是can't be而不是mustn't be must be的否定式怎么改 There seem to be的否定形式 there seem to be 还是there seems to be used to do 的否定式didn't use to do 中的use怎么读? 反义疑问句They don’t seem to answer the phone.---There isn’t anyone at home,________?请问是用否定式还是肯定式?陈述句中既有 not 又有anyone 请问是算（负负得正）否定的肯定的否定 最后是用否定式吗? 想这样的be+动词+to do sth这样形式的短语,否定式是什么? Yesterday he went to school.否定式 used to do sth 的否定式 there seem 就是there seem to be There seems no reason to postpone it seem to be的否定形式是seem not to be还是don't seem to be there seem to be 和it seem to be的区别 must的否定式是musn't还是mustn't There _____sign of life on Mars.A.seem to be B.seems not to be C.seems to be no D.isn’t seem to be是不是 C啊,其他几个为什么错