With the development of science and technology，there is no doubt ________ Chinese astronauts will land on the moon in the near future.

Which is ______, the sun, the moon or the earth? —Of course the sun is.

The teacher asks them to look_____ the blackboard. [ ]

Does anyone want to go to the theatre?— Whom would you rather ____ with you, John or Ted?.

Do you go to school __________ Saturday morning?[ ]