a good friend must / doesn't have to / should, a good teacher is supposed to / has to / mustn't, a good sibling doesn't need to / is supposed to / has to, a good waiter should / shouldn't / mustn't, this weekend the weather may / might / could, a good shop assistant must / is supposed to / shouldn't, name 3 ways how you can ask your neighbours formally and informally to be quiet (could / would / will / may), if you want to learn English, you'd better / should, a good politician has to / doesn't have to / should / mustn't, a good wife/husband must / should / mustn't, a good doctor is supposed to / doesn't have to / mustn't, a good person has to / should / doesn't have to, in September I will manage to / be able to

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