Be to do 表将来的用法?为什么这个空选D?When he. the door ,he found his keys were nowhere. A would open B opened C had open D was to open

be to do和be doing在表将来的时候用法有什么区别? 表将来的几种用法will & be going to & be doing & do/does & be to这 5种用法都可以表示将来,但是做单选是怎么区分呢?注 ：只有把5种用法都说清楚并且分别造一个句子,用例句解释并对比的才能获得20 求be going to be to do be about to 一般现在时表将来的作文,急 be going to do 和be doing用法的区别?最好能举出例子～我说的是当两者都表将来时态时的差别！ Be to do 表将来的用法?为什么这个空选D?When he. the door ,he found his keys were nowhere. A would open B opened C had open D was to open be to do 的用法. be going to表将来、be doing表将来和will/shall+do三者间的区别如题! 高中英语. 可以表示将来含义的词或用法有哪些?除了 情态动词,be going to , be to do,be about to do. will,祈使句, 还有些什么呢? 情态动词都可以表示将来含义么? be to do;will do;be going to do;be doing;be about to do;这些表将来的都有什么区别呀 求解现在进行时和be about to表将来的用法及不同 将来时态的区别be going to;will do;be doing;be to do;be about to do如题 5种用法 要解析和很典型的例句 be going to do和be doing 都能表将来,区别是什么?will do 和be doing表将来的区别是什么? be easy for sb to do表将来吗 to be done是什么意思?to do是表将来,to be done是表将来被吗?可是to do不是表主动的吗?什么时候会出现to be done啊?to being done 和to been done呢? be used to do的用法 be about to do sth的用法 be to do的意思和用法 be comfortable to do sth的用法