问题
选择题
---Mary has been trained hard for the last two years.
---______ she did so well at the track and field meet yesterday.
A．No doubt
B．No question
C．No wonder
D．No problem
答案
答案：C
考查交际用语：A项是没有怀疑，B项是没有要问(提问)的问题了 C项是难怪，D No problem是“没问题”，句意是：--过去两年玛丽一直受严格训练。--难怪她在田径比赛中做得这么好。选D。