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5) worthwhile6) worthy2.1) lone2) alone3) alone4) lonely5) lonely6)aloneIII. Usage1) icecream2) teas3) wines4) cloth5) soap6) beer7) fuels8) soils9) sugars10) grassComprehensive ExercisesI. Cloze1. 1) are dying to 2) in the heart of3) tangled4) paddles5) loop6) out of sight 7) in flocks8) hopping9) gliding10) opaque11) thrashing12) darting13) swarms14) spectacular 2. 1) running2) fancy3) incorporate4) exploring5) guide6) adventure7) rarely8) diverse9) survive10) luckyII. 1. 1) Janet was just the kind of girl Mike knew he could trust, so he bared his heart to her on their first date.2) At first the girls played on the fringe of the dark force, now laughing, now screaming, but before long they were out of sight.3) The moment the football players disembarked from the plane, they saw a fleet of cars waiting for their arrival.4) Carson condemned his opponent for using misleading information to smear his character.5) Alex gave the policeman a wallet stuffed with banknotes. He said the had found it on the curb when he hopped off his school bus.2. Last Wednesday, my cla