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课时作业(十)
Unit 3 Lessons 19、20
（20分钟 50分）
Ⅰ. 根据句意及首字母或汉语提示完成单词(5分)
1. They exchanged g______ and sat down to have lunch.
2. We should f______ others’ mistakes.
3. When we learn a foreign language, we learn not only words but also c______.
4. There are______ (几个; 若干)kites in the sky.
5. Have you heard a______ (谚语)“All roads lead to Rome”?
