Choose the right answer.
It was hot and we decided to walk in the shade/shadow of the wall.
The temperature was over 90C degrees in the shade/shadow.
She felt as if every pair/couple of eyes in the room was on her.
I just need to make a pair/couple of calls.
In the morning, with a clean/clear head, she had solved the problem.
Before hiring Sam as a chauffeur they made sure he had a clean/clear driving licence.
Everybody stood in admiration watching the pack/school/pod of whales on the horizon.
The excursion to the valley full of swarms/colonies/armies of butterflies costs a lot.
If the bear growls/howls/hisses, it is the sound of warning.
The crowd barked/roared/screamed in delight.