行为规范类词汇与短语 — 英语词汇题

根据句意和中文提示，写出所缺单词（每空一词）。1. Don't t______ rubbish on the floor. Put it into the bin.（扔） 2. We should be q______ in the library.（安静的） 3. Please k______ to the right when you go upstairs.（靠，保持） 4. It's not p_____ to talk loudly in class.（有礼貌的） 5. Don't p____ flowers in the park.（摘）