Sorry to have kept you waiting. You must have thought ___.

A. we are not coming                                        B. we were not coming   

C. we did not come                                          D. we were not come

Sorry to have kept you waiting so long. You must have thought we ________.

1. A.
   are not coming
2. B.
   were not coming
3. C.
   had not come
4. D.
   had not coming

Sorry to have kept you waiting. Now I'm going to ________ you ________ the experiment .

1. A.
   talk to, for
2. B.
   talk about, with
3. C.
   talk with, about
4. D.
   talk of, to

--- Sorry to have kept you waiting for so long.

--- Oh, _______.

A. got it B. go ahead C. that’s life D. don’t say that