It sounds like something is wrong with the car’s engine.      , we’d better take it to the garage immediately.

A．Otherwise

B．If not

C．But for that

D．If so

唐宋八大家是“韩愈、柳宗元、苏洵、苏轼、欧阳修、苏辙、王安石、曾巩”，前（）位是唐代人，后（）位是宋代人。