By 1898,a bomber was rare and worth______.
问题描述:
By 1898,a bomber was rare and worth______.
A.to be saved B.to save C.saved D.saving
B为什么不对?
答
worth虽然是一个形容词,但是常常发挥介词的作用,其后要接名词或动词的ing形式,不能接不定式