Now that he ________ that he had made some mistakes，you should have forgiven him.

You stepped into the lab with your shoes on? You’re _______ to take them off before you enter it.

Her shoes _____ her dress; they look very well together.

When Ben’s house was on fire last night, several neighbors rushed to his    and put out the fire.

________ have an internal clock that controls the beating of our heart, and the ________ of our breathing.