Bob______nearly two hours doing his workyesterday

Is it true that Jack_______— Exactly He damaged a very expensivemachine

(2013·沈阳重点中学协作体高三预测)I just wonder ________ that makes him so excited.

－John’s English is very good. －Yes. I want to know ____________.

The written record of our conversation doesn’t ______ what was actually said. There are a lot of mistakes.