Question

I don’t remember how many years ago ______________I paid my last visit to the principle of my primary school.

A．it was that

B．was it that

C．it was when

D．was it when

Answer 1

A

考查it was that的强调句型。本句强调句子的时间状语how many years ago，且从句要用陈述语序，所以选A。