.If the launch in 2005 is successful, China will be the third country ________its astronauts into space.
Peter is my close friend, who can be ____ what he promises.
Everybody in the village likes Jack because he is good at____ jokes.
Tom put his heart into the wildlife research, and finally, his efforts ____ him great success and fame.
You'd sound a lot more polite if you make a request ____ a question.
____, the pay isn't attractive enough, though the job itself is quite interesting.