根据所给汉语意思,完成下列句子。

1. 说实在的,我真的不知道我是否会对孩子们的生活产生影响.

     ____________, I doubt __________to these boys' lives at all.

2. 她正要出去买东西,这时天开始下起雨来了.

    She _______ go shopping ________ it began to rain.

3. 患难见真情.

    A friend _________ is a friend_________.

4. 我一直忙于学习,以至于我没有时间参与社会活动.

     I have ________ study that I haven't had time for social activities.