1.I was doing my homework ____ a boy rushed into the classro

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1.I was doing my homework ____ a boy rushed into the classroom.
可以填while或as吗?请说下可以或不可以的原因.
2.All the passengers ____ on their plans.
A.will be welcome B.will be welcomed
哪个对?请说下选A或选B的原因和不选的原因.
3.____ by the beauty of a girl,the boy decided to make friends with her.
A.Attracting B.Attracted C.To be attracted D.Having attracted
我知道应该选个被动的,但是哪个最好呢?请说下原因.

1. when, 不可以用while 或as,因为后面表示的是点时间,而while 和as是用于持续性动作或段时间的,因此不行.
2. A. 你套用一下welcome 的其他用法： you are welcome,这里就是这么用的,将来时变成will be welcome.
3. B. 这是分词结构,因为是被动,所以用过去分词,而且独立分词结构时,如果没有特别明显的事态标志,那就用一个过去分词就够了.

1.I was doing my homework ____ a boy rushed into the classro i was doing my homework when a boy rushed into the classroom The boy said,"I am doing my homework."间接引语 the boy rushed into the room with a stck___ the boy i saw __in a road accident was rushed to the hospita I was doing my homework in the room,_my brother_with a toy. The phone rang （）I was doing my homework?A when B while 为什么 I was doing my homework,my mother was cooking in the kitchen I was doing my homework and forgetting the time.I was too bu I spend two hours doing my homework a day.改为同义句.I ____ ____ 1.I ____my homework and forgot the time .A.did B.was doing C A boy rushed into the classroom in the () of the exam. 用 mid