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是BE up to sB to Do还是Doing?

be up to sb to do be up to“由……决定;胜任”。 例如:It'

It is up to sb. to do sth. 该句型为“该由某人做。。。”。该句型中u

不是,it做其形式主语只是其中的一种用法。 1、be up to 表示“从事于,忙于”,后面接名词、

(1)没有be up to do这种说法。 (2)be up to doing sth. (体力或

set 后是用to do sth。 set to do动手干(认真开始干,争论,拳赛,殴斗)。

hurry有三种用法,做及物动词、不及物动词和名词。 hurry做及物动词时常在hurry+sb.

太经典了 Cuz when you wake up 当你醒来时, I wont be there

It is up to him to decide who's going firstly.

be up to sb’s neck 深陷;忙于;到极点 例: 1. E

what be sb going to be when sb grow up? 当某人长大后,会是

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