A. work out B. go off C. daily D. vitamin A. communicate B. noon C. eat D. multimedia A. expose to B. football C. shark D. many A. invite B. Yes,please C. survival D. instead A. thought B. absolutely C. nervous D. grayish A. act B. event C. since then D. return A. push B. dust C. heavy rain D. out of breath A. cause B. gain C. Halloween D. meow A. space station B. novice C. midnight D. stamp A. dash B. secondly C. starvation D. get