A. calculate B. replace C. weariness D. future A. devoted B. yellow C. documentary D. gunpowder A. theater B. role model C. nebula D. production A. best-protected B. kingfisher C. twenty-first D. biology A. well B. painful C. rocket D. today A. dirt B. agriculture C. muster D. stare A. miraculously B. a pair of scissors C. botany D. the British Museum A. vegetable B. convert C. reach D. problem A. diver B. comet C. hybrid D. adamant A. navigator B. get out of C. partly D. north-east