Question

--How often do you attend the evening classes?
---_____, three times per week.

A．On the whole

B．On average

C．Little by little

D．In all

Answer 1

B

短語辨析。   A整體來說； B. 普通，通常；  C. 逐漸地 D.總共，合計。句意：你多久上一次夜校課程？——通常每周三次。故選B。