问题补充：
—I can start to work next Monday.
— then. I am glad to be able to offer you the job.
A. You can be serious.
B. You e welcome.
C. Thats right.
D. Its settled.
答案：
A. You can be serious.
B. You e welcome.
C. Thats right.
(答案→)D. Its settled.
解析：
试题分析:考查情景交际。A你是在开玩笑吧。B不客气；欢迎你；C对，正确；D就这么定了。根据语境可知说话人同意对方说的话，所以D选项正确。句意：--我可以下周开始工作。--那就这么说定了。我很高兴能给你提供这份工作。
