where is Mr Green work?用is还是用does

where is Mr Green work?用is还是用does Is Mr Green ----?---No ,he is -----work. Where is your father?--At Mr Green' Mr.Green is used to____(work) hard. where ___ the Green family live?是填 does还是do还是is还是are where is/does your sister work? —Excuse me. Where is Mr Green’s office? Mr Green isnot at work.He is （ ）vacation. Mr.Green is a/an extremely strict teacher中的介词是用a还是an? This is Mr Green MR.green is【 】father 用英语表达他藏在哪里,是Where is he hide 还是Where does he hide