–It’s dangerous here. We must not let people fall down. --You’re right. Come on!
#60385
A
stop... by falling
B
keep...falling
C
protect...falling
D
prevent...from falling
推荐题目
 He _______ be a history teacher.
#59524
A
used to
B
be used to
C
use to be
D
be use to
When something ______ me, I always feel ______.
#59186
A
worry, worried
B
worries, worry
C
worries, worried
D
worried, worries