.If you _______wait a moment, I’ll go and find our manager.

Scientists photographed for the first time ever _____ wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.

 So tired __________ after walking such a long way that I ___________ stand.

Evidence obtained from observation and experiment is often used to _____ a scientific theory.

31. My uncle promised to buy a nice gift for my birthday, _______ beyond my imagination.