—Look! He’s running so fast!—Hard to______ his legs were once broken. 
#66030
A
know
B
imagine
C
realize
D
find
推荐题目
The little girl can ______ music.
#72918
A
sing for
B
sing with
C
dance to
D
dance with
Roads in this mountain area used to be ______; people found it hard to travel here. 
#71307
A
in poor conditions
B
in good condition
C
in poor condition
D
in a poor condition