問題詳情：
根據句意，用方框中所給單詞的適當形式填空。
keep, clean, because, lesson, wonderful |
1. You can _______ the books for three weeks.
2. The park is so _______! I want to visit it tomorrow.
3. We don’t have _______ on Sundays.
4. It’s 4:45 p. m. Kangkang and Michael are doing some _______ in the classroom.
5. Meimei is not happy _______ her pet dog is lost.
【回答】
1. keep 2. wonderful 3. lessons 4. cleaning 5. Because
知識點：選詞填空
題型：完成句子
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