Theoldman,
问题详情：
The old man,_______ abroad for 20 years, is on the way back to his mother land. work ing have worked ng worked
【回答】
D
知识点：非谓语动词
题型：选择题
问题详情：
The old man,_______ abroad for 20 years, is on the way back to his mother land. work ing have worked ng worked
【回答】
D
知识点：非谓语动词
题型：选择题
