---Who’s that at the door, Tony?---________ is the postman, I think.
含有相同音素的一组字母是______。
— Are you willing to live on Mars(火星) one day? — ______________ It sounds exciting, but it still worries me.
Shanghai is bigger than ________ in Japan.
_________ make any noise. Your mother is reading books.
He speaks English well, but of course not ________ a person born in England.