根据句意及首字母提示，写出空白处所缺的单词。 1. When the t____
题型：填空题
问题：
根据句意及首字母提示，写出空白处所缺的单词。
1. When the t_______ lights are red, you must stop and wait.
2. Did you r_______ her letter the day before yesterday?
3. We must keep our classroom c_______ every day.
4. Look! It's raining outside. You'd better put on your raincoat or take an u_______.
5. N_______ Li Lei nor Liu Mei is in the classroom now.