With his attention _____ the blackboard,
题型:选择题
问题:
With his attention _____ the blackboard, he didn't notice me when I came in.[ ]
A. fixed with
B. fixing in
C. fixed on
D. fixed to
With his attention _____ the blackboard, he didn't notice me when I came in.[ ]
A. fixed with
B. fixing in
C. fixed on
D. fixed to