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
Thank you for ________to let me ________on the trip.
#49901
A
agree; to go
B
agreeing; going
C
agreeing; go
D
agree; go
— He is working hard now.— He tries ___ English. So he practices ___ English every day.
#49653
A
to learn, to speak
B
learning, speak
C
to learn, speaking
D
learning, to speak
The student is afraid _________ English with foreigners.
#51150
A
to practice to speak
B
to practice speaking
C
practicing speaking
D
of practicing to speak
---Shall we go to Mount Tai next Sunday? ---I’d prefer ______ at home rather than _______.
#49886
A
staying;goout
B
tostay;goout
C
stay;togoout
D
stays;goingout