题目内容
By the late 1950s, scientists had already _____ enough information to show a clear link between smoking and cancer.()
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How _____ ! The male student who seldom attends class has got the highest mark this time.()
It is very important to _____ your speech to the subject.()
——Your book, Tommy? ——No, Mom, it's my friend's. ——Remember to return it to ____ name is on it.()
Thank you for sending us ____ fresh vegetables of many kinds. You have done us ____ great service.()
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