问题
选择题
31. All his attention______on the computer game, 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
答案：C
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31. All his attention______on the computer game, 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