【简答题】Rewrite the following sentences, using proper forms of inversion. 1. Christopher Columbus didn ’ t discover the American continent till 1492. Not until . 2. The secretary knows little about it. Little...
【简答题】Nick Santonastasso has one arm equipped with one finger. He has no legs. He also has no limitations(局限). “ I know anything’s possible ,” the 12-year-old told TODAY ’s Ann Curry. He can play baseball a...
【单选题】Professor Green, known to the world as a scientist, is not only absent-minded but short-sighted as well. His mind is always busy 41 scientific problems and seldom notices what is going on 42 him. On...