what (are/is)good manners (are/is)not always the same in different countries应该添哪个,为什么?

what we want ---good textbooks 是IS还是ARE _____the jacket?-It is good.A.What are B.What is C.How are D.How is What he is good what good is that? ( )the jack?It is good.A.how is B.what is C.how are What are you good at cooking?What is your favourite dish?的回答 what you were not good at is usually what you are not good what you were not good at is usually what you are not good at正确的意思, What we need are good doctors.为什么谓语是are而不是is,主语是waht啊 what are you good at What are you good at What are they good at? what is 力子论?what is 力子论?who can tell ma? what (are/is)good manners (are/is)not always the same in different countries应该添哪个,为什么? what good news it is! what is the good computer what is it good for What is a good diet? What is good for是什么意思