A. piece B. skating C. scissors D. citizen A. submit B. through C. knock on the door D. Internet A. enter B. adviser C. at weekends D. ghost A. academy B. notice C. swim D. migrate A. copper B. herself C. fax D. leg A. forget B. ill C. minority D. all one's life A. tomb B. have a seat C. tent D. gaily A. excited B. due to C. waterspout D. stomachache A. put away B. unfair C. sweet D. physicist A. locked B. snowball C. kind D. underside