（6）One must endorse a cheque before one cashes it.支票兑现前必须先签字

语法：句子成份分析帮我分析一下下面几个句子的句子成份,越详细越好：One must endorse a cheque b endorse为什么在支票背面签字,什么叫背书? the english course must be ( )one month before it begins You must pay for your course at least one month before it st 句子成分 it not a pen one must do one's duty 英语翻译One day before my final exam,my dad give me a gift.It co It is a Japanese _________ to take off one’s shoes before en One day before my final exam my dad gave me a gift It comple one must do one is This must be a _________ house.It is very old and no one liv To master a foreign language one must work hard at it. we have only one earth we must ()it a more beautiful place f