Mr. Li asks the students          in the river, because it’s too dangerous.
#50453
A
swim
B
to swim
C
not to swim
D
to not swim
推荐题目
______nature reserves _______us learn more about protecting animals.
#48781
A
Studying ; help
B
Studies ; helps
C
To study; helping
D
Studying; helps
Why not_____an English club to practice_____English? 
#51265
A
to join; to speak
B
join; speaking
C
join; to speak
D
to join; speaking
Are you still afraid __________?
#49059
A
to being alone
B
of being alone
C
of alone
D
to live lonely