下列词语书写有误的一项是[ ]

A．桂林  胆怯  呵斥

B．拂动  屈辱  健壮

C．趾爪  铁茏  羞愧

D．恍惚  斑纹  耀目

We thought there were 35 students in the dining hall, ____, in fact, there were 40.

A．while

B．whether

C．what

D．which