问题
选择题
All his attention________on the computer game he was playing,so he even didn't notice his mother enter
the room.[ ]
A．has been fixed
B．was fixing
C．was fixed
D．fi
xed
答案
答案：C
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All his attention________on the computer game he was playing,so he even didn't notice his mother enter
the room.[ ]
A．has been fixed
B．was fixing
C．was fixed
D．fixed
答案：C