I asked him ___ it, but he just remained unmoved.
Wind power is an ancient source of energy ______we may return in the near future.(2010 ,上海)
If you have a job, ______ yourself to it and finally you'll succeed.(2010 .四川)
-Artistic people can be very difficult sometimes.-Well, you married one. _____.(2011.全国I)
In communication, a smile is usually _____ strong sign of a friendly and _____ open attitude.(2011 .重庆)
To be great, you must be smart,confident, and, _____, honest. (2011.安徽)