问题
选择题
John was dismissed last week because of his ______ attitude towards his job.
A．informal
B．casual
C．determined
D．earnest
答案
答案：B
形容词词义辨析。根据句意：“约翰上周被解雇是因为他对工作满不在乎的态度”，只有B项符合题意。informal非正式的；determined坚定的；earnest认真的。