试题题干
（）is known to the world, Emest Hemingway is a great American writer.
参考答案
正确答案：
试题解析
句意：众所周知，海明威是一位伟大的美国作家。As is known to the world，众所周知，固定用法。
（）is known to the world, Emest Hemingway is a great American writer.
句意：众所周知，海明威是一位伟大的美国作家。As is known to the world，众所周知，固定用法。