I think you two, _______Tom, ______ the broken glass.
Frankly speaking, ________ of them knew what the other was doing that morning.
I'll spend half of my holiday practicing English and ________ half learning drawing.
September 18th, 1931 is a special day, ________, I think, that will be remembered by the Chinese forever.
—Shall I attend my friend's comingofage ceremony, Mum? —No, unless you see to ________ that you will be home before 1000 PM.
—What do you think of the 2013 Spring Festival Party? —Well, great! But I don't think much of ________ held last year.