I don’t know the reason _______ you were absent from the meeting, and I am not sure that someone will tell me the reason _______ you haven’t told me.
A 3G mobile phone, ______to be most useful and fashionable, is popular with some teenagers.
She will have to ______ herself to the new condition.
—Where is that report? —I brought it to you _______ you were in Mr. Black’s office yesterday.
We have every reason to believe that ______ 2010 World Expo in Shanghai will be ______success.
Zhao Benshan, whose overwork ____ his health failure last year, is reported to have performed less successfully in the 2010 Spring Festival Gala on CCTV.