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题目内容
（东华大学大学英语4）
38、______ the maths problem is difficult, I’ll try very hard to work it out.虽然这道数学题很难，我会尽力将它做出来的。
A. Though
B. When
C. Before
D. After
A. Though
B. When
C. Before
D. After
参考答案
