______nature reserves _______us learn more about protecting animals.
#48781
A
Studying ; help
B
Studies ; helps
C
To study; helping
D
Studying; helps
推荐题目
---I’m too busy________ to my family often. --- Why not call them instead ?
#50313
A
writing
B
write
C
written
D
to write
---I feel tired and sleep y . ---Why not for a while ?.
#48556
A
stop resting
B
stop to rest
C
to stop to rest
D
stopping to rest
