I was giving a talk to a large group of people, the same talk I        to half a dozen other groups.

    A. was giving      B. am giving      C. had given      D. have given  

 I was giving a talk to a large group of people, the same talk I __________ to half a dozen other groups.

A. was giving       B. am giving        C. had given            D. have given

I was giving a talk to a large group of people, the same talk I ________ to half a dozen other groups.

1. A.
   was giving
2. B.
   am giving
3. C.
   had given
4. D.
   have given

I was giving a talk to a large group of people, the same talk I _______ to half a dozen other groups.

A. was giving          B. am giving

C. had given         D. have given

I was giving a talk to a large group of people, the same talk I ____ to half a dozen other groups.

A. was giving      B. am giving      C. had given      D. have given