【单选题】The Dog The dog is one of the most popular pets in the world. It ordinarily remains loyal to a considerate master, and because of this the dog has been called man's best friend. Class distinctions bet...
【简答题】阅读理解。 The African elephant, the largest land animal remaining on earth, is of great importance to African ecosystem (生态系统). Unlike other animals, the African elephant is to a great extent the builder ...
【单选题】____ to give up smoking, he threw away his ______ cigarettes. A. Determined; remained B. Determined; remaining C. Determining; remaining D. Determining; remained