Complete the first conditional sentences with the correct form of the

Complete the first conditional sentences with the correct form of the verbs in brackets.
1) If we ___ (leave) now , we ___ (be) at the airport on time.
2)If I ___ (not have) a big scuitcase, how ___ (I/pack) everything?
3)I think the plane ticket ___ (be) cheaper if you ___ (buy) it Now.
4)I ___ (not take) my phone charger if you ___ (take) yours.
5) ___(you/bring) your swimming costume if we ___ (go) to a place with a swimming pool?
6)If he ___ (not turn down) the music, I think the neighbours ___ (be) angry.But it ___ (not be) a problem if he ___ (put) his headphones on.
7) How ___ (they/go) on holiday, if they ___ (not have) passports?