【单选题】Section A Vocabulary. Directions: There are 20 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE answer that best completes the sente...
【简答题】语法填空 The polar bear is found in the Arctic Circle and some big land masses as far south as Newfoundland. While they are rare north of 88°, there is evidence 61 they range all the way across the Arctic...