It is usually warm in my hometown in April, but it ________ be rather cold sometimes.
A．can B．must C．would D．should
You should be ________ a diet; otherwise you will get fatter and fatter.
A．at B．in C．on D．with
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
