be surprised if you can get Calvin, who is verybusy, ______these tickets for you

I have learned that a large new building will be set up__________the Twin Towers once stood.—So have I.But the American people haven’t yet got over the shock of September 11.

She is very good at painting. She can paint _______her teacher.

_____, I can’t express myself in words. [ ]

_______ I know the exam isn’t difficult, I shall not worry about it.