A. tiring B. ballast C. scientist D. public A. October B. quiet C. careless D. any A. care about B. report C. lawn mower D. nurse A. rubbish B. forgery C. aid D. waterfall A. machinery B. dare modal C. flat D. a number of A. billion B. pull together C. stray D. fear A. solve B. use C. via D. sports meet A. inaccessible B. outlook C. yell D. increase A. grow B. lay out C. vocabulary D. deer A. pick B. borrow C. prepare D. initiative