---What do you think of the book? ---Oh,excellent. It's worth____a second time. A. to read B.to be read C, reading D,being read
. 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.