Ladies or gentlemen，whether young or old，____ some money of yours to the poor people in the mountain area who are suffering．
A．to donate B．donating
C．donate D．will donate
--How do you like this piece of music by Tan Dun?
--Well，of all the music that he has written，I think this is his ____ one．
A．better-known B．well-known
C．best-known D．most-known
--This kind of sports is exciting．
--Yes，but it's dangerous．One can't do it ____ he or she has got some training．
A．if B．after C．when D．Unless
--Could you tell me ____?
--Until tomorrow afternoon．
A．how long you will stay there
B．how soon you will stay there
C．when will you stay there
D．how often will you stay there
--How can we help the children in the mountain village?
--We can ____ leaflets to ask people to donate money．
A．give in B．give off
C．give up D．give out
Chairperson Xi calls on us to do what we can ____ as much as possible．
A．save B．to save C．saved D．saving
