行为规范类词汇与短语 — 英语句型题
题目
根据句意和首字母提示补全单词（每空一词）。1. Don't l____ on the grass. We should protect it. 2. Please q____ down. The baby is sleeping. 3. We must w____ in line when we wait for the bus. 4. It's polite to h____ old people carry heavy things.