A turning point of the continuously high housing price won’t appear suddenly because there must be a certain process _____ many factors lead to the change.
—Can I help you, Madam? — No, thanks. I_______.
—Tom came back home the day before yesterday. — Really? Where __________ at all?
Our team was ahead during the first half, but we ________ in the last ten minutes.
―Look! It looks as if it _______ going to rain. We must hurry. ―OK.
―If the traffic hadn’t been so heavy, I could have been back by 6 o’clock. ―What a pity! Tina _______ here to see you.