---We’ve seen many more days of blue skies recently. ---True. But back in 1998, ________ Beijing started its “Defending the Blue Sky” program, the city only ________ about 100 days a year.
He walked along in the _____hoping no one would recognize him.
They _______to finish the task before July, but they didn’t make it because of the terrible weather.
Tom is a stubborn and careful man; It took many hours to_______ him of my good idea and to give up his.
The monitor wanted to buy two_______ stamps, but the salesgirl only sold him_______ these stamps.
I spent most of my money in the first week and________ had very little to eat by the end of the holiday.