-- _____is that used for?---_____ the floor.
Great changes have taken place in that college. It’s no longer _____ it was 20 years ago, _____ it was so poorly equipped.
Though having lived abroad for years, many Chinese still _____ the traditional customs.
It had been half an hour before she found herself _____ in the wrong direction of her home.
It’s fascinating to see _____ different people approach the problem.
The newly-built pavilion is _____ the old one.