https://www.lttc.ntu.edu.tw/MSmain.htm

Cambridge KET/PET/FCE are popular English credential system among sandwich classes for their children.

http://www.cambridgeenglish.org/exams-and-tests/key/
http://www.cambridgeenglish.org/exams-and-tests/preliminary/
http://www.cambridgeenglish.org/exams-and-tests/first/

你可以試下 Google D past paper 睇下你鍾唔鍾意玩下