A. depend B. professional C. distinct D. from A. horde B. month C. after-class D. slide into A. use up B. and so on C. circle D. fossil man A. anxiety B. composer C. helicopter D. suddenly A. square B. racing C. look at D. sleepy A. rainstorm B. paper clip C. dismiss D. the Nile A. command B. prolonged C. prevent D. same A. extreme B. binoculars C. all D. electricity A. outbreak B. northeast C. compartment D. triangle A. western-style B. falter C. peak D. telephone