If people (enjoy) their job, they (be) happier in general.
enjoy/are
If people (work) a thirty-seven hour week, they (have) quite a lot of leisure time
work/have
If you (eat) a balanced diet, you (feel) healthier
eat/will feel
You (be) happier as a country if you (pay) higher taxes
will be/pay
We’ll get the bus unless we see a taxi first. Make this sentence with "if"
We will get the bus if don't see a taxi first
If you spend it wisely, money can buy happiness. Make this sentence with "unless"
Unless you spend it wisely, money can't buy happiness
If you (not/hurry), we (not/get) to the cinema in time.
If you don't hurry, we won't get to the cinema in time
They'll arrive at 7 p.m. ........... the plane is delayed
unless
If we (have) a positive attitude, we (feel) down when things don't work the way we want them to
have/won't feel
