A. step B. work from home C. unite D. disk A. in charge of B. last name C. paradox D. hmm A. space travel B. marble C. performer D. fear A. in surprise B. leader C. privately D. Australian A. onion B. researcher C. neat D. preservation A. May Day B. defeat C. twin D. cat A. special B. unbearable C. wipe out D. amphibian A. billy-goat B. underestimate C. major D. steepen A. energy B. tomb C. What's worse D. sprain A. confess B. craftsman C. bachelor D. length