What must we say when we speak to older people?

What must we say when we speak to older people? We must value what we We students must c____ on what whe have studied The old man and woman often c_____ under the treeWe students must c____ on what whe have studied.The old man and woman often c_____ under the tree,they talk about their cats. This is what we must what was wrong with him yesterday?whe knew宾语从句we knew We must value what we have 英语翻译whe yo say nohing at all As teachers we should concern ourselves with what is said, not what we think___A.have to be said B.must say C.ought to be said D.need to say为什么答案选d,该如何理解这句话. 首字母填空 1.What’s the matter with him?The noise made him m____.What’s the matter with him?The noise made him m____.Look,it's raining outside again.What bad weather!I can't work in high s____.We must obey the traffic rules,e____ whe we do what we say we will do what do you say we ask him? 英语翻译We do what we must because we We well be together forever OK you must say ' ok ' the train is gong to leave.we must say good What must we have to keep healthy? eart hides what we can't say.But eyes say what we try to hide. 翻译We do what we must because we canWe do what we must because we can什么意思 这个首字母填词谁会做?Frank is late for school again,and Mr.Smith ,her teacher is angry.You are late again.says Mr.Smith,Now,what's your excuse(借口) this t_____? I'm sorry,sir,says Frank ,but you tell me we must be very careful whe