He was in hospital for six months. He felt as if he was ______ from the outside world.
The witnesses __________ by the police just now gave very different descriptions of the fight.
In some languages, 100 words make up half of all words __________ in daily conversations.
It was not until midnight __________ they reached the camp site.
We finished the run in less than half the time __________.
Vitamin C helps our bodies make a special chemical, which __________ affects our brains, making us feel happy.