—Could you help me take care of my pet dog on the weekend? — I’m afraid I’m not that day.
--I think _____possible that he has got the ticket for tonight’s concert . --So do I. He seemed very happy for the whole afternoon.
Mr. Li’ s house is so big, about _____ours.
Up to now, Marin _____in the library for about two hours.
Recently, there have been many occasions ______ you have attended events on your own.
In front of our house ________ we used to swim.