1. It is true that he is honest.
2. It is Tom that I met
3. It is Jimmy that broke the window.
My grammar book says it is possible to omit 'that' in the above sentences, but I think
it's pretty awkward if we leave 'that' out in sentence 2 and 3.
What is the answer?
Like bahaisahab, I would not omit 'that' in the second, but it's possible. It is not possible to omit it in the third.