Put the verb in brackets into the Present Simple or the Present Continuous or the Future Simple.
It ______ \(be\) 7 o’clock now. I _______________ \(not know\) when he ___________ \(return\) and whether he __________ \(come\) at all.

• is, don't know, will return, will come
• is, don't know, returns, comes
• is, won't know, returns, comes
• is, don't know, returns, will come