Ⅰ. 根据句意及首字母或汉语提示完成单词
1. Can you f _______ a sentence with these words?
2. Don’t throw r _______ here and there. It’s bad for the environment.
3. The red rose is regarded as the s _______ of love.
4. They will visit the city again at a _______ (合适的)time.
5. Sometimes reading e-mail English is just like guessing _______ (谜语).
