We all know that the painting, named Racing Horse, is a(n) ______ example of Xu Beihong’s style.

—Did you have a good sleep last night?—Yes, never sleep    .

．Life is too short to waste and too ________ to give up.

The reason why this kind of machine is popular with users is that it will work in ______ temperature.

It was really _____ of your brother not to play the guitar while you were preparing your lessons.