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根据对话选词填空。 had better not , needn’t, had better, would rather, mustn’t JENNY: Nick, we 1______ go to bed. It’s very late. NICK: I know, but I 2______ help Trig than go to bed. He’s tearing up his English exercise book and he’s throwing his grammar book round the room. I don’t think he’s very happy. JENNY: Well, you 3______ stay up too long. NICK: Trig, stop it. You 4______ throw your books at the wall. It won’t help and you might break something. You 5______ work at your English now. What are you learning? TRIG: Abbreviation [n] 1 U abbreviating, being abbreviated 2 C shortened form of a word, phrase, etc. ‘Sept’ an abbreviation for ‘September’… NICK: But Trig, that’s from the dictionary. You 6______ learn the whole dictionary by heart!