A. look B. see C. notice D. watch
A.good B.odd C.exciting D.satisfying
A. fertile B. fragile C. file D. furious
A. margin B. border C. boundary D. edge
A.disguise B.disgust C.distress D.depress
A. sum up B. size up C. figure out D. wipe out
A. suspect B. doubtful C. suspicious D. anxious
A. problem for which there is no simple solution B. complex C. internal D. emergency E. delicate