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2021.10.29英语每日一练
感谢您能抽出几分钟时间来参加本次答题，现在我们就马上开始吧！
姓名
—Why do you look sad?—There are so many problems _______.
—These trousers are dirty and wet.—I’ll change into my ________.
When deeply absorbed in work, ______ he often was, he would forget all about eating or sleeping.
Bill was doing a lot of physical exercise to build up his_______.
