Complete the text with suitable prepositions.

The ceremony began (a) _____ 10 a.m. Our principal Mr. Rahman presided (b) _____ the function and Member of Parliament Mr. Reza was the chief guest. The function started (c) _____ the recitation from the holy Quran. One (d) _____ our senior teachers read (e) _____ the annual report. The honorable chief guest delivered a brief but inspiring speech (f) _____ education. He advised the students to be regular (g) _____ the class and attentive (h) _____ studies and take part (i) _____ the movement (j) _____ illiteracy.