试题题干
WORD FORMATION
Complete the following sentence with the proper form of the word in the bracket.
(break) Hitler’s 
promises included an attack on Poland, which Britain and France were bound by treaty to defend.
参考答案
试题解析
promises是名词，需要形容词修饰。
句意：希特勒的失信的承诺包括对波兰的攻击，英国和法国都被条约所保护。