21. He used to ring his mum and say what he was doing, _____________ he?

   A. wasn’t       B. didn’t       C. used       D. was

22. The terrible experience that someone ________________ in the dark was still lingering in my mind.

   A. robbed me of the purse           B. robbed the purse from me 

C. stole me of the purse             D. stolen the purse from me