WAEC - English Language (2015 - No. 15)
From the word lettered A to D, choose the word that best completes each of the following sentences
He was given a certificate of....in English.
He was given a certificate of....in English.
efficacy
efficiency
proficiency
sufficiency
Erläuterung
He was given a certificate of proficiency in English.
proficiency; a high degree of skill; expertise.