China'shigh-speedrailways

問題詳情：

China's high-speed railways _____ from 9,000 to 29,000 kilometres in the past few years.

   A. are growing     B. were growing     C. will grow        D. have grown

【回答】

D

【解析】考查動詞時態。句意：*的商鐵在過去幾年中由9 000千米增長到29 000千米。由“in the past few years”可知此處應用現在完成時態。故選D。

知識點：動詞時態

題型：選擇題