- Complete the first conditional sentences with the correct form of the verbs.  
1) If we (leave) now, we (be) at the airport on time.
2) If I don’t have a big suitcase, I (not pack) everything.
3) I think the plane ticket (be) cheaper if you (buy) it now.
4) I won’t take my phone charger if you (take) yours.
5) If he (not turn down) the music, the neighbours (be) angry.
6) They (not go) on holiday if they (not have passports.