A-A+
He worked ______ at his task for weeks before
问题详情
He worked ______ at his task for weeks before he felt satisfied that the results would justify his long effort.
A．occasionally
B．regularly
C．patiently
D．assiduously
参考答案
正确答案：D
解析：(assiduously坚持不懈地，刻苦地)。句意为：他连续好几个星期坚持不懈地执行任务才觉得满意，因为结果表明他长时间的努力是值得的。A．occasionally偶尔；B． regularly定期地；C．patiently耐心地。
