单选题 As a developing country, we must keep ______ with the rapid development of the world economy.
  • A. move
  • B. step
  • C. speed
  • D. pace
【正确答案】 D
【答案解析】[解析] keep不与move、speed搭配，故可排除B、C。keep pace with(=hold pace with)表示“跟上，与……同步，并驾齐驱”，如Are wages keeping pace with inflation?工资的提高能否与通货膨胀同步?keep step with(整齐步调)与句意不符。所以，答案为D。