1 . 在我看来,学生应该多听多说,以便能培养他们的沟通技巧。
As far as I am concerned,students should do more listening and speaking________________ .
As far as I am concerned,students should do more listening and speaking
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2 . The boy ________ speak three languages when he was 12 years old. (用适当的情态动词填空)
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3 . You ________ keep the book for a month.After that you must return it on time. (用适当的情态动词填空)
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