--- Can you wait for me for another two hours? --- Sorry. Two hours _____ too long, I will go without you.
下列各组字母中全部是元音字母的是 ____。
—____ you Mingming? —____, I’m not.
—____ —Fine, thank you.
Mom, this is my teacher, Miss Lin. Miss Lin, ____
—Welcome to Beijing! —____