Whoever _____ a new idea of how to work out the puzzle will be given a prize.
| A．comes up | B．comes up with | C．comes out with | D．comes with |
A man landed on Mars? You must be joking. It ______ be true.
| A． mustn’t | B．can’t | C． needn’t | D．won’t |
It’s nearly time for class to start. The teacher _______ be here soon.
| A．must | B．need | C．should | D．Can |
It was playing computer games that cost the boy plenty of time that he ______doing his lessons.
| A．might have spent | B．must have spent |
| C．ought to have spent | D．must gain |
------We want someone to design the new art museum for us.
------______the young fellow have a try?
| A．May | B．Shall | C．Will | D．Need |
Jack tried to play a trick _____ his sister but she wasn’t taken ________.
| A．by, on | B．in, in | C．on, on | D．on, in |