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