回答数
4
浏览数
205
小羊囡囡
Second class, third class, fourth class, Class V, Class VI, Class VII, Class VIII, Class IX
三鲜豆皮皮
the fourth lesson, the fourth class or the fourth session
陈家小鱼儿
the fourth period
福气娃娃TT
参考答案如下：1. Can2. Must, have to3. needn't, mustn't4. May, must5. should, shouldn't助你愉快学习！
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