----Why didn’t you see me wave to you then ? ----Oh, If so. I must say sorry. I think I____ in the other direction.
. This new-type machine____________ little room.
--You don't look so well, Mary. What's the matter with you? --Why?___________.
China has hundreds of islands, ___________ is Taiwan Island.
Be quiet!Our teacher has _________ to tell us.
Nearly________ of the surface of our planet is covered by water.