问题
选择题
With all his attention ________ on his experiment, he has no time to spend with his family.[ ]
A．paid
B．focused
C．attracted
D．settled
答案
答案：B
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With all his attention ________ on his experiment, he has no time to spend with his family.[ ]
A．paid
B．focused
C．attracted
D．settled
答案：B