单选题
The government"s inability to ______ its own laws and regulations disappointed the electorate (选民).
【正确答案】
B
【答案解析】[考点] 词汇量
[解析] enforce“实施，执行(法律、规章等)”，如strictly enforce the rules of the school“严格执行学校的规章”，可见该词符合题意；guarantee“保证，担保”，如“guarantee sb. against (from)...”(保证某人不受损失)；sanction“认可，核准”；strike“打，击，敲”。