The old man was the only person on the spot____ helped him ____ a series of facts as told

Although the soldier was quite thirsty, he didn't drink the water________ in the bottle.

Despite such a big difference in the __________ towards what one eats, there is no doubt that people in the West regard the Chinese food as something special.

This article may be some advice about how to _________ oneself in society.

 According to scientists, our mental abilities begin to _______ from the age of 27 after reaching the highest level at 22．