_______ has finished the work ahead of time will be rewarded though we don’t know who it will be.

Lots of rescue workers were working around the clock, _____ supplies to Yushu, Qinghai province after theearthquake.[ ]

I called you yesterday evening, but no one answered. — I ______in my bedroom at that time.

Please call me at 7:00 tomorrow morning. I’m kind of forgetful. — Don’t worry about that. You’ll surely be _______. [ ]

I can’t say which sofa looks better. It’sjust a _____ of personal preference.