— It’s late now. We must go back to the ________.— Yes. I really need a good sleep.
Jack spends much money on books _ _ he is not so rich.
_people will visit Qinzhou during the 12th Games of Guangxi.
—Is that _ _ schoolbag? —No. __ _is white.
—lily is coming by_____ plane tomorrow. —Let s go to _ airport to meet her.
Which of the following is caused by the earth's turning around the sun?