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题目内容
（赤峰学院- 高级英语I(专升本)）
22. (单选题) He is busy ________, giving lectures and working on the textbook.( )(本题3.0分)
A、 such as
B、 so that
C、 as usual
D、 as well
A、 such as
B、 so that
C、 as usual
D、 as well
参考答案
