1. 托尼昨天上学迟到了。
    Tony _____ school yesterday.
2. 她已坚持为李奶奶打扫房间两年了。
    She _____ the room for Grandma Li for two years.
3. 他太小了，不能独自到那里去。
    He is _____ go there alone.
4. 今天阴天。明天怎么样？
    It's cloudy today. _____ tomorrow?
5. 玛丽不仅自己喜欢下棋，还花很多时间教别人如何下棋。
    Mary _____ how to play chess.

1. 朗朗是一名出色的钢琴家，但是他还坚持每天练习弹奏钢琴。
    Langlang is an excellent pianist, but he still _________ __________ the piano every day.
2. 我今天很想带上我最喜欢的小狗去外婆家。
    I ____________ ___________ taking my favourite dog with me to my grandma's today.
3. 如果我们节约水，那么将会有更多人喝上清洁的水。
    If we don't save water, ________ people will have no water _________ _________.
4. 直到他的班主任打电话给他，他才知道他在竞赛中获得一等奖。
    He _________know that he had won the first prize _______his teacher told him on the phone.
5. 她一点也不害怕在千百人面前讲话，因为她已经充分准备好了。
    She was not ________ __________ giving a talk in front of ________ of people ________ she has prepared
    very well for it.