_____more time, he’ll make a first-class tennis player.
The tower ________very old ________ the Ming dynasty.
It just doesn't ________—why did you do such a thing!
You must place these events in their ________ context.
You can't be careful enough to drive on the ______ road in ________weather.
He always lacks enthusiasm in work,and he's never ________a job for longer than a few weeks.