1. 在书店和医院的中间有一个公园。
    There is a park _______ the bookstore ________ the hospital.
2. 沿着这条路往下走，你可以看到邮电局，它就在你的左边。
    Go _______ the road, you'll see the post office ________ your _______.
3. 然后在太平桥处换乘21路公交车。
    Then _______ to the No. 21 bus _______ Taiping _______.
4. 小明昨天从自行车上摔下来受伤了。
    Xiaoming fell down from _______ and got _______ yesterday.
5. 你能在星期六之前完成这项工作吗？
    Can you finish the work _______ Saturday?