MP4 What should we do ?(选择题) 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