对代数式“5x”，我们可以这样来解释：某人以5千米/小时的速度走了x小时，他一共走的路程是5x千米．请你对“5x”再给出另一个生活实际方面的解释：（    ）．

根据所给汉语，完成英语句子。每空填一词。

1. 姐姐叫醒我时，已经是早晨七点钟了。

    By the time my sister _____ me _____, it had been 7 am.

2. 你爸爸让我搭便车去城里真是太好了。

    It's kind of your Dad to _____ me a _____ to town.

3. 妈妈听到这个好消息是又惊又喜。

    Mom was _____ surprised _____ pleased at the good news.

4. 天太热了，我想立即冲个澡。

    It's    __   hot _____ I want to take a shower at once.

5. 他们已宣布将于国庆节结婚。

    It has been announced that they will    __       ___ on National Day.