It was not until the 18th century that man realized that the whole of the brain was involved in the working of the mind, ?
She saved her money ___she might buy a color TV set.
The doctor must have sat up all night with his patient, __ you see, he looks tired and sleepy.
It’s quite warm __December in China.
The mountains look grey ___ the blue sky.
Xiao Li didn’t come to our party. We all fell sorry __ him.