what is always coming,but neveer arrives?脑筋急转弯

What is always behind time?______ What letter is always big in sentence? He always stands for what is right Always felt that what is missing what letter is always a question? what letter is always asking a question? what is always going butnever gets anywhere? What letter is always asking a question意思What letter is always asking a question是什么意思 what is it that is always coming but never arrives? this is not always what happens but it is what should happen特别是what 的用法 What it is that always behind time?(谜语) what tree is always very said?脑筋急转弯 What is always coming but never arrives?(脑筋急转弯） what is always coming,but neveer arrives?脑筋急转弯 She always helps others.What an _____girl she is!(usually) and maybe this is what people always said What kind of sweet is always late for class? What kind of dog is always bitten but never barks?