—I think I'll give Bob a ring.—You ______. You haven't been in touch with him for ages.
It was not until mid-night_______ they reached the camp site.
-Why not have a meeting to discuss about it?- .
People nowadays spend they used to buy less food, especially meat.
With the quality-oriented education being carried out, teachers won’t too much importance to students’ grades.
Don’t call me at 9:00 o’clock tomorrow morning ,when I a lecture at Harvard.