看圖或根據(jù)中文選詞補全句子。
Wait     traffic lights     Stop     traffic rules
1. Look at the ________________.
2. Remember the ________________ (交通規(guī)則).
3. ________________ at a red light.
4. ________________ at a yellow light. 
1. traffic lights  2. traffic rules  3. Stop  4. Wait
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