____to go for a walk.it began to rain怎么不选when preparing而选as we were preparing

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/16 09:41:21
____togoforawalk.itbegantorain怎么不选whenpreparing而选aswewerepreparing____togoforawalk.itbegantorain怎么不选

____to go for a walk.it began to rain怎么不选when preparing而选as we were preparing
____to go for a walk.it began to rain
怎么不选when preparing而选as we were preparing

____to go for a walk.it began to rain怎么不选when preparing而选as we were preparing
因为后面的主语是it而前面的准备的主语必须是人,两个主语不一致不能省略用非谓语的,所以原答案正确

前后主语不一样,如果选了when preparing,就是主语一样了,而这有不符题意。