A. arsenic B. appreciate C. history D. help oneself A. lychee B. move away from C. railway D. freedom A. operate B. nerve C. arise D. curtain A. computer B. sleeping bag C. Poland D. excursion A. intend B. equator C. rice cake D. porter A. have a cold B. proceed C. unemployed D. upside A. critic B. thrill C. distinct D. digest A. annoyed B. lively C. sing D. soundly A. Happy New Year B. fluctuation C. basement D. notice A. serve B. allow C. tent D. horizontal