Нужно образовать вопросительную форму. she is speaking over the phone now. we are talking about important problem at the moment. they were going to the cinema when you met me. my mother is cooking dinner when i came. надо. заранее .

Is she speaking over the phone now?
Are we talking about(дальше я дописывать не буду,будешь просто дописывать то что в предложениях, я даю только вопросительную часть) ?
Were they going to the cinema?
When your mother is cooking dinner?

Does she speaking...? Are we talking...? Do they going...? Is my mother cooking...?