自考《英语（一）》试题练习：be busy doing为习惯用法（6.30）
单选题
[2004.10]Jean didn't have time to go to the concert last night because she was busy ______ for the examination.
A.to prepare
B.to be prepared
C.preparing
D.being preparing
编辑推荐
单选题
[2004.10]Jean didn't have time to go to the concert last night because she was busy ______ for the examination.
A.to prepare
B.to be prepared
C.preparing
D.being preparing
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