関係部分だけ抜くと（アンダーグラジエイト）
The qualifications below are not acceptable as equivalent to GCSE/GCE ‘O’ Level (grade C) English Language
but they are considered acceptable evidence of proficiency in English.

ケンブリッジ英検
Cambridge Certificate of Advanced English.
Cambridge First Certificate in English.

IELTS
International English Language Testing System (IELTS) when an overall score of at least 6 is achieved with a minimum of 5.5 in each sub-test.
International General Certificate of Secondary Education (IGCSE): English as a Second Language passed at grade C or above.

TOEFL
Test in English as a Foreign Language (TOEFL) with a score of 580 (or 237 on the computerised test) plus the Test of Written English (TWE) with a score of 4.5 (or a Writing Rating of 4.5 in the computerised test).

http://www.londonexternal.ac.uk/how_to_apply/entrance/profeng.shtml