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5.Why don’t you join an English language club to practice speaking English ? # Why don’t you+动词原形 动词原形…? 动词原形 =Why not +动词原形
动词原形…? 动词原形 为什么不…….? 为什么不…….? # practice doing 练习干…… 6.I don’t have a partner to practice English with. =I practice English without a partner