Was it from Mary, _______ was working at a department store, ______ you learned the news?
| A．who; who | B．that; which | C．who; that | D．who; which |
The student _____ from the training so much that he was _____ the first prize in the game.
| A．benefited; awarded | B．awarded; benefited |
| C．gained; earned | D．earned; gained |
Some students even have no idea of they are studying, so they waste much time playing.
| A．what | B．when | C．why | D．where |
If you ________ smoke in the room, please keep the windows open.
| A．should | B．may | C．shall | D．must |
From the top of the tower, people can see at least ________ distance of 10 kilometers on ________ clear day.
| A．a; the | B．不填； a | C．a; a | D．the; the |
A number of high buildings have arisen ______ there was nothing a year ago but ruins.
| A．where | B．when | C．before | D．until |