1. The biggest whale is _______ blue whale, which grows to be about 29 meters long—the
height of _______ 9-story building.
A. the; the B. a; a C. the; a D. a; the
2. It was April 29, 2011 _______ Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.
A. that B. when C. since D. before
