Sandy feels unhappy because nobody seems to ______ her progress.
---- There is _______ interesting book on the teacher’s desk.---- Oh, ______ book is Wei Fang’s.
—Where are you? I can’t see you in the hall.—______. I’m just one block away.
—______ did Samuel stand by the window so long?—To see what would happen.
—What else do you need for the trip, Mum?—______ else. I think we have got everything ready.
Nanjing Underground Line 10 ______ on the morning of February 27th, 2014.