— Mr. Smith has got a very good job in t
题型：选择题
问题：
— Mr. Smith has got a very good job in the famous company.
— ________ he looks so happy. [ ]
A. It's certain
B. That's because
C. No doubt
D. No wonder
— Mr. Smith has got a very good job in the famous company.
— ________ he looks so happy. [ ]
A. It's certain
B. That's because
C. No doubt
D. No wonder