I prefer______to school on foot rather than_____the crowded school bus.

Is your iPad black, Mary?–No, it isn’t. ______________ is white.

sheto her grandma’s every week?

Alice explains things very well, what she says can be understood very ＿＿＿.

Do you know Peng Liyuan?—Of course, she is First Lady of China, famous singer.