I could feel my heart beating quickly_____I went on stage to give a lecture. [ ]

You ________ give me a lift. I want to walk home for exercise.

What is that on the table –Oh, a set of ___________ on the table.

Humans’ activities have pushed some endangered animalsinto a situation we will probablynever see them.

Nearly all educators believe that a challenging situation can often _______ the best qualities of a person.