—Look!He’srunningsofast! —Hardto    hislegswereoncebrok...

問題詳情：

—Look! He’s running so fast!  —Hard to     his legs were once broken.

A. know                      B. think                      C. imagine                  D. understand

【回答】

C

知識點：動詞和動詞短語

題型：選擇題