Be sure _______ when you enter the cave. Otherwise, you’ll hit your head on the rocks.

Which of the following does paper burn in

It is just impossible to ____ the little hut on the side of the mountain.

What best quality ______ most people _______ in others is the willingness to admit one’s mistakes.

.－Jim!Did you have a good time at the party－Yes，but with all this work on hand，I really________there．