Only when he put his foot into the river________that the water was too cold to swim in.
Let us not waste____________ time we have left.
——Excuse me, ____________? ——That's 110 yuan altogether, sir,
—Sorry, I couldn't find the magazine you asked for.— ____________.
————That was a green dinner. _______ ————Thanks. But it really only took an hour.
— Do remember to take this medicine three times a day with warm boiled water.— _________.