Tom was about to close the window () his attention was caught by _英语解答

Tom was about to close the window () his attention was caught by a bird 为什and不可以
and可以表并列啊为什么不可以？这个题选项 AwhenB ifC and D till答案是A 还有有没有 be about to do ...when的结构？谢谢:-)

人气：170 ℃　时间：2020-04-19 22:51:44

解答

填when.
这个句子前后不是递进关系,不能填and.
有的,这里正是be about to do sth when.结构,“正想做某事这时（突然）.”的意思.句子的意思是,“Tom正要关窗,这时（忽然）一只鸟吸引了他的注意力.”