Great changes have taken place in that factory. It is no longer _________ it was 20 years ago,_____ it was so poorly equipped.
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.