問題詳情：
根據句意從方框中選擇合適的動詞，並用其適當形式填空，使句子通順。
chat fly swim not be have |
1. Simon ___________ happy because he doesn’t do well in English.
2. Many young people enjoy _________ with each other on Wechat(微信).
3. Sandy often ______ kites with her friends at weekends.
4. Some children don’t know how _____________ fun.
5. Millie usually practises ____________ in the river in summer.
【回答】
1. isn’t 2. chatting 3. flies 4. to have 5. swimming
知識點：選詞填空
題型：完成句子
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