A. building B. bowl C. argue D. bigger A. erase B. refer C. try one's best D. get in A. cow B. human being C. attraction D. banking A. on the right B. organization C. guidebook D. sunburnt A. Double Ninth Festival B. chimp C. retire D. he A. crowd in B. red-crowned crane C. hull D. metro A. lost and found box B. observe C. household D. week A. go by B. lead a life C. not any longer D. alive A. generation B. advisory C. girlfriend D. philosopher A. world B. behave C. thus D. can't help doing