—Are you coming to Jeff's party？
—I'm not sure． I _______ go to the concert instead.
| A．must | B．would | C．should | D．might |
— Will your brother stay home tonight?
— I’m not quite sure. He _____ to the cinema tonight.
| A．must go | B．can go | C．may go | D．may be going |
Since the road is wet this morning, _____ last night.
| A．it must rain | B．it must be raining | C．it must have rained | D．it must have been rain |
— Where is John? — He _____ in the library.
| A．should be | B．must be | C．can be | D．must have been |
In recent years many football clubs ______ as business to make a profit.
A. have run B. have been run C had been run D. will run
If their marketing plans succeed, they ____ their sales by 20 percent.
| A．will increase |
| B．have been increasing |
| C．have increased |
| D．would be increasing |