She felt completely at the mercy of her boss.

I finished the task in no time at all.

I strive to be punctual at all times.

I have a car at my disposal.

You can contact me at any time.

At this rate, we won't finish the project on time.

Success often comes at a price.

I fell in love with her at first sight.

The brave knight held the dragon at bay with his sword.

Please make yourself at home.