问题补充：
【小题1】We had a lot of fun singing (sing) in the classroom.
【小题2】She decided to buy (buy) the red dress.
【小题3】This sound made the baby cry (cry).
【小题4】Most boys enjoy playing (play) football after school.
【小题5】The shop is always crowded (crowd) on weekends.
【小题6】 Would you like to go (go) shopping with me?
【小题7】I saw a little girl looking (look) for her parents on the street when I walked across it.
【小题8】Were (be) you at the shop last Friday?
【小题9】The boy spends a lot of time practicing (practice) the piano in the room.
【小题10】Look! Who is standing (stand) near the door?
答案：
解析：
此题重点考查语法知识，尤其是各个固定短语的基本结构。
【小题1】 have fun doing sth表示喜欢做某事
【小题2】 decide to do sth决定做某事
【小题3】make sb do sth表示让某人做某事
【小题4】enjoy doing sth表示喜欢做某事
【小题5】 be crowded表示非常拥挤
【小题6】 like to do sth =like doing sth表示喜欢做某事
【小题7】see sb doing sth表示看到某人正在做某事
【小题8】 一般过去时的一般疑问句的基本结构
【小题9】sb spend some time in doing sth表示某人花费时间做某事，其中in可以省略。
【小题10】 现在进行时的基本构成。
