下列各组字母中全部是元音字母的是 ____。A. a, e, o, r B. a, i, u, e C. o, u, e, n
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?