Stressful environments lead to unhealthy behaviors such as poor eating habits, which _____ increase the risk of heart disease.
.- Did you enjoy yourself at the party? - Yes. I’ve never been to _____ one before.
.-I can smell something _____ in the kitchen. Can I call you back in a minute? - OK.
A middle-aged woman came ____to the bus stop, only ___ the bus had gone.
.- Can I smoke here? - Sorry. We don’t allow _____ here.
.It’s no _____ arguing with Bill because he will never change his mind.