Какие словосочетания используются с предлогом ат

Как выполнить задание 4 класса: - какие словосочетания используются с предлогом ат

 

[Ste]

at first, at hand, at liberty, at a loss, at the moment, at the most, at random, at the request of, at the same time, at sea, at short notice, at times. at fault, at all costs, at worst, at least, at peace, at present, at ease, at risk, at attention, at ease.