Помагите сложить предложения!
1)if/Jack/not/leave now/he/miss the bus
2)if/the band/not/practise/they/not/play well

1) If Jack doesn't leave now, he will miss the bus.2) If the band doesn't practise they will not play well. или еще может быть If the band hadn't practised, they wouldn't have played well.