John does important research _______ the best ways to help the old.
#48571
A
finds
B
finds
C
found
D
to find out
推荐题目
It’s good __________ your health_________.
#48980
A
for, to drink milk
B
for, to drink a milk
C
of , drink milk
D
of , to drink milk
My mother often tells me _______ my classmates when they need.
#50938
A
help
B
to help
C
helping
D
helps
His parents make him _______ at night.
#49233
A
stay at home
B
stays at home
C
to stay at home
D
to staying at home