阅读下面文章用括号中所给词的正确形式填空。

    Uncle Li and Uncle Wang are good friends. They live next to each other and often help each other.

    But neither of them would like (use) their head. They're both poor though they work hard. Once Uncle Li went to town (take) some medicine for his wife.

    In the town he heard the apples in a city were expensive (昂贵的). He told Uncle Wang about it.

    They decided (carry) some apples to the city. However, a lot of apples had already been carried there when they arrived. They didn't know what (do). They felt unhappy and returned to their village. They didn't understand why they couldn't make money, but they both agreed (buy) more apples and take them to the market because they thought they didn't bring enough. How foolish they were!