Who do you guess _____ to the station to meet her?
During the reconstruction of the city , many modern tall building went up old shabby houses were torn down.
Most scientists seem to agree that ________ certain limit should be set on ______sale of cars to ease air pollution.
—I’m confident that we’ll win this time.— You’ve been practicing so long.
I have been so occupied ____ work that I haven’t had time for social activities.
President Obama has two daughters, _____ able to fit in well with their citizens.