after hearing the news,i could not ____________ my work that whole afternooconcentrate in set minds to set my mind on set my mind at 选项从上到下依次为 1 2 3 4
问题描述：
after hearing the news,i could not ____________ my work that whole afternoo
concentrate in
set minds to
set my mind on
set my mind at 选项从上到下依次为 1 2 3 4
答
选3吧,最好用concentrate on,
set mind on比较少见.
意思是：听到这消息后,我整个下午都无法安心工作.