Don’t forget to learn another important skill, which is falling down safely.

As the ranger was issuing us a permit, he warned us about bears.

I don’t like a teacher who gives a lot of homework.

He wants to be adopted by the Russes who are his foster parents.

The boy’s father who did not live with their mother did not want children to live with him.

The lawyer who represented Mrs. Smith was a woman.

After finding several new sources, the quality of my research paper went up quite a bit

Which node triggers the contraction of the atrium?

The chambers of the heart expand or dilate during which phase of the cardiac cycle?

Which valves close when the ventricular systole begins?