Помогите с английским пожалуйста,необходимо воткнуть подходящие выражения Complete the sentences

Помогите с английским пожалуйста,нужно вставить подходящие выражения
Complete the sentences by choosing suitable linking word from the box below:
provided that, supposing, unless, in case, as long as, so long as

1) Well pay them more money ___ they work harder.
2) We wont give them longer holidays ___ they promise to be more productive.
3) We wont shorten their lunch-break ___ they agree to start earlier.
4) Well have to improve safety standards ___ someone has an accident.
5) Well consider providing better working conditions ___ we have enough money.
6) ___ we introduce a shorter working week, how will we make a profit?
7) Well include worker representatives in the Board of Directors ___ theyre trained to manage.
8) Well let some of full-time workers stay with us ___ they agree to be lower-paid.