He invited me to a dance after the show ________ Christmas Eve.
The old man sitting under the tree smiled dreamily, as if _____something pleasant in the past.
Often they give up sport, _________they have no time _______after their work.
---John has made great progress in the last two months. --- _________, and _________.
The house, ____________is blue, will be used as a library.
Petroleum(石油), along with fuel gas, ________ in price. Thus a larger amount of money __________ spent on transportation.