The humans are destroying nature day by day,__________of course,will cause severe punishment from it sooner or later.
____ he comes to Nanjing he will go to the Eastern Suburb for sightseeing.
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.