What should we do? (1) All of us should be the ___________ in this war. A. fighters B. scientists C. doctors D. policemen (2) We should fight against fear, ________, doubts, rumors, and discriminations. A. enemy B. certainty C. selfishness D. worries (3)We should not be afraid even it is a fierce( 激烈) and _______ war. A. terrible B. unsafe C. cruel D. uncertainty