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题目内容
（河北建筑工程学院-大学英语）
(单选题) Albert ( ) his homework yesterday, so he couldn..t come to the party.(本题1.0分)
A、 must do
B、 may have done
C、 ought to do
D、 had to do
A、 must do
B、 may have done
C、 ought to do
D、 had to do
参考答案
