why are you still here They have already to stare .I'm sorry

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why are you still here They have already to stare .I'm sorry ,but I ------ when to leave
A didn't tell B wasn't told C don't tell
填哪个,并讲解,

B
你为什么还在这?他们都已经开始了.
对不起,但是我没有被告知什么时候离开.
是被动式,A以前为没有说C为现在没有说
被动式
1.谓语动词中叫被动语态.
构成：be + vt-ed 或 be + vi-ed +prep
其中be动词是用来体现时态的,也就是通过be的变化体现时态.
比如：am/are/is + vt-ed 是一般现在时；was/were + vt-ed 是一般过去时等；
2.非谓语动词中不定式有被动式,-ing分词有被动式：to be done; to have been done; being doing; having been done;
什么时候用被动式?
简而言之：
及物动词后面没有宾语时,就考虑用被动式

why are you still here They have already to stare .I'm sorry Suan why are you still here?They are all ready to start .I a Susan,why are you still here?They are all ready to srart.-I' -----Susan,why are you still here?They are all ready to star -Jean,why are you still here?They are ready to strat.____I a i'm sorry to have kept you waiting long.never mind.I（）here I'm sorry.Why I have cheated you long. li lei isn't here,i'm sorry to say you ___wait.A.must B.have why are you still lying down here it seems that you have not why you are not still here 还是why you are still not here Why are you still here?still在这里是adj? I'm sorry I still love you