题目

题型：同步题难度：来源：

同义句转换
1. He concentrated his energies on study.
   He        _his energies _       study.
2. I must concentrate on my new task.
   I must be      _ _  my new task.
3. He fixed his eyes on his book and didn"t notice we came in.
   He       his attention       his book and didn"t notice we came in.

答案

1. devoted ;  to
2. devoted to
3. concentrated; on/paid; to