I could have arrived on time for the conference,but our flig

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/05/17 01:14:18

I could have arrived on time for the conference,but our flight _ because of the fog.
A.was delayed B.had been delayed 为啥不选B?
Mr,s Liu gave us a speech yesterday,in which she shared with us _ it took to be successful in life .
A.what B.when C.where D,that 为何选A?

1. A
翻译：我本可以准时赶上会议,但是因为大雾我们的班机延时了.
解释：B为过去完成时,表明be delayed这个动作发生在另一个过去的时间/动作之前.
但是题中并没有另外一个发生在be delayed动作之后的时间/动作啊.
前句的could have arrived...只是一个虚拟的用法,并不是一个真正发生在过去的动作.而且正是因为此种用法表明是对过去动作的虚拟,才表明选项动作是发生在过去,所以用一般过去时.

2. A
解释：逗号后面的非限制性定语从句中,in which = in the speech
但是she shared with us的后面 ___ it took to be successful in life是一个表示sth的宾语,即和前面构成 share sth with sb 的搭配.
因为这个sth 是一个较长的宾语从句,所以上述短语变成了：share with sb sth.
而这个宾语从句中,took后面又明显缺少一个表示sth的宾语,所以只能用疑问代词what代替了.
BC是副词,在宾语从句中只能充当状语,而不能充当宾语,排除；
that引导的宾语从句,则表明that在从句中只起引导作用,并不充当任何成分（即该宾语从句不缺少任何成分）,所以D也错误.

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