what to和how to可以放在句子开头吗?人家说what to和how to是不定式充当宾语,他可以放在开头做主语吗(陈述句或者疑问句)?

what to和how to可以放在句子开头吗?人家说what to和how to是不定式充当宾语,他可以放在开头做主语吗(陈述句或者疑问句)? How to 可以放在句子开头吗? 宾语从句中的what to do如一个句子 I don't know what to do 中的what to do 是否可以换成 how to do 是否能在what to do 后面加一个 it 在英语句型转换题中how to do it和what to do可以转化吗? 某到不是很清楚的英语语法题_______ it is to have a rest under the tree after working in the field.A.how fun B .how a fun C.what a fun D.what fun选了之后告诉我为什么.普通的What 和How放在句子中我会区分..但是碰上 how to do the next和what to do next这两句句子对吗? according to 可以放在句子中间吗? oh ,how l wished to do what they were doing !这个句子是感叹句? 那么what可以替换how吗 i don't know how to swim.i decided what to buy.这两个句子里面的how to swim 和what to buy是名词短语,为什么 what和how引导的从句They want to know _________do to help us.答案是填what.那么为什么不能用how呢?在此句子中,what充当从句的什么成分? how to do it 和how to do 的情况我在平常做英语题是经常会遇见what to do或how to do,但是有一次发现竟然是用how to do it请问在什么情况下用how to do it什么情况下用how to do我在这个句子里看到过how to do “how to do it和“what to do,请高手为我从句子结构上分析, how to choose和 what to choose有区别吗 how to do和what to do的区别 how to say 和 what to say 的差别 what to wear和how to wear的区别 what 和 how 在词性和用法上有什么区别?主要的一些句型有哪些?What to say How to say How to speak What to speak 有哪些不同?各自的意思是什么?是否有错句? how to do it和what to do it的区别how to do it，what to do 的区别