—Henry has been teaching English in Beijing university for many years.
—It’s no he can speak Chinese so well and idiomatically.
A. matter
B. doubt
C. problem
D. wonder
网友回答
A. matter
B. doubt
C. problem
(答案→)D. wonder
解析：no matter没关系,不要紧；no doubt多半,十有八九；no problem没问题；no wonder难怪,不令人吃惊。根据句意应选D。