Какой общий вопрос можно задать к предложению : It's 7 o'clock. I don't know when he...

Question

Какой общий вопрос можно задать к предложению : It's 7 o'clock. I don't know when he returns and whether he comes at all.​

Answer 1

What's the time? Do you know when he returns and whether he comes at all? хотя логичнее было Do you know when he will return and whether he will come at all?