We must concentrate our attention ______ efficiency.
举一反三
- We must ________ our attention on the question of reducing our cost.
- In doing our work, we must pay attention ____ways and means.
- We must pay attention to our tone and style in research paper writing.
- We must _____ our attention on the question of reducing our cost. ( ) A: promote B: focus C: absorb D: pay
- You must concentrate your attention ______ the main contradiction involved in the problem. A: on B: at C: to D: of