what to do与when to do的区别

what to do与when to do的区别 Nobody told us___A.what to do it B.how to do C.where to do D.when to do it Signs tell people what to do and___A.how to do B.what not to do C.where to do D.when to do The boy didn't know___.A：what to do it B：what to do C：when to do D：how to do WHAT TO DO WHEN THERES TOO MUCH TO DO怎么样 what to do 和when to do it是什么结构 The old lady didn't know ( ) when she lost her wayA.how to doB.how to do itC.what to do D.what to do it I really don't know ______ next,please give me some advice.A what to do it B how to doC what to do D when to do Would you please tell me __ next?A.how to do B.what to do C.when to do D.where to do would you please tell me _ a.what to do b.how to do it c.when to do d.how to do I'm not sure ( )next.A.what to do B.how to do C.when to do D.why to do 选择哪个呢?原因是什么?谢 After the discussion,the students asked their teacher next.A.which to do B.what to do C.how to do D.when to do Good idea.But first we should find out _____.A.how to do B.when to do C.what to do it D.how to do it what to do 与how to do 的区别I don't know ____________.A.what to say or do B.what to say and to do C.how to say or do D.how to say and to do It's time to decide what to do and ____A.when to do it B.when to doC.when I should do D.how should I do it【还要把为什么不能选这个答案的原因说一下.】 What do you want to do when you are old? what do children like to do when is what can we do when there is nothing to do?