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
—“Did you have any difficulty in today’s homework?”—“No, in fact I found ________.”
#51219
A
it very easy to do
B
it very easy done
C
it’s very easy to do
D
very easy to do it
________ can make people healthy.
#48684
A
Doing more exercise
B
Watching TV too much
C
Going to school without breakfast
D
Going to bed too late at night
After the earthquake, many kind-hearted people did what they could ________ those who suffered from it.
#50367
A
help
B
helping
C
to help
D
helped