17．---May I surf the Internet tonight?
--- No, you ______．You must do the exercises．
| A．needn’t | B．won’t | C．mustn’t | D．don’t |
She loves music and is now learning to play an ____________.
| A．instrument | B．invitation | C．incident | D．evidence |
She doesn’t ________ much money，but she enjoys the work.
| A．appreciate | B．earn | C．employ | D．charge |
His face looked _____ to me，but I just couldn’t remember where we met.
| A．distant | B．confident | C．familiar | D．logical |
The elderly need special care in winter，as they are________to the sudden changes of weather.
| A．stubborn | B．generous | C．humorous | D．sensitive |
He told me that nobody else in the office had received an ___________to the party.
| A．invitation | B．bargain | C．shelter | D．guidance |