1.It is too late.Why ( ) home now?A not to go B not going C

1.It is too late.Why ( ) home now?A not to go B not going C not go D don't go
2.Can you tell me which room( )
A dose he live in B does he live C he lives in D he lives
3.Our teacher told us the earth ( ) around the sun.
A travelling B travelled C travel D travels
4.She asked me if I know whose pen ( ).
A is it B it is C was it D it was
5.The teacher asked Sam ( ) late again.
A not be B is not C to be D not to be
6.I don't know ( ) tomorrow.Can you tell me?
A when we started B when did we start Cwhen we will start D when will we start