________ you drive, you mustn’t drink wine at all.A. If B. Unless C. Though
Customs change from country to country. Some customs in China are quite different fromin Western countries.
—Excuse me, Liu Ming. Could you tell me what a UFO is like? —Sorry. Perhaps really knows whether there is a UFO in the world.
New Year’s Eve, there are lots of celebrations around the world.
A lot of good teachers ____ their students .
--Where is Tom? --He ____ in the big room.