Do you know the _________ of the saying I just quoted?

She made a silly mistake because she hadn’t kept her       on her work.

What’s the _____ of having a public open space where you can’t eat, drink or even simply hang out for a while? 

—Hi,Magarette! You are in perfect        .—I always do exercise to keep fit.

I asked the tailor to make a small _____ to my trousers because they were too long.