题目内容

根据句子意思,用括号中所给单词的适当形式填空。
1. Children should speak to old people _______ (polite).
2. Tree-planting Day is on the _______ (twelve) of March every year.
3. David took a lot of ______ (photo) in Mochou Lake Park last weekend.
4. The time is too short.It’s ______ (possible) for Daniel to finish this work.
5. Stephen spends about half an hour ____ (swim) every Saturday afternoon.
1. politely   2. twelfth   3. photos   4. impossible   5. swimming
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