Question

Choose the correct verb form to complete the sentence given below.
I ________ the pages before I realised that they were important.
(a)tear
(b)torn
(c)tearing
(d)had torn

Answer 1

tearing .the correct answer

Answer 2

I had torn the pages before I realised that they were important.

Rule :

When there is a past tense in the sentence , the second blank must be filled with a past perfect tense