A. let me see B. main unit C. penholder D. copy A. environment B. remarkable C. opposed D. army A. orchestra B. write about C. on time D. annual A. sales B. less C. doughnut D. crowd in A. sedulously B. hidden C. koala D. give sb a hand A. do tasks B. tiny C. sing D. flat A. be tired out B. drink water C. lychee D. adorn A. fire extinguisher B. dare C. murder D. writer A. red B. assign C. novel D. in some ways A. return B. hello C. help oneself D. shocked