科目:高中英语 来源:2009年东北育才学校高三模拟英语最后一卷 题型:014
On Feb.28th, Joseph Juran, who developed ideas that ________ still important today to improve the quality of products, ________ at the age of 103.
A.were; died
B.are; die
C.have been; die
D.are; died
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