be polite to others and not ride bicycles h____

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be polite to others and not ride bicycles h____
keep s___in class
s____and drinking are not allowed in classrooms or on walkways

keep s___in class
Keep silence in class
Keep silent in class
s____and drinking are not allowed in classrooms or on walkways
Sleeping and drinking are not allowed in the classroom or on walkways

He finds it h____ to be polite. be polite to others还是be polite with others be polite to others的中文是什么 Careful boys and girls learn to ride their bicycles well____ I___(should not be)polite to others.用一般将来时完成句子 be polite ( ) others How to be polite to others 英语作文 It is not polite to stare at others. It is not polite to laugh（） others It is not polite to s_ at others. It is not polite to interrupt others when laugh at等于It's not polite to laugh at others.It's not polite