Cancer cells destroy not only all rival cells, in their ruthless biological warfare, but also destroy the larger organization—the body itself—signing their own suicide warrant. A: refined B: random C: merciless D: perpetual

The pigeons were picked up and piled in heaps, until each has as many as he could possibly _____________. A: rope off B: unfold C: dispose of D: expire E: extirpate F: extricate

They hugged (拥抱) each other so tightly that no one could __________. A: put them together B: help them C: pull them apart D: pull off

Answering mobile phone calls while you are at a work meeting is not only discourteous, but it can also destroy the ______ of the meeting. A: capableness B: efficacy C: facts D: impression

As if you needed another reason to hate the gym, it now turns out that exercise can exhaust not only your muscles, but also your eyes. Fear not, however, for coffee can stimulate them again. During