As you know, although there are no classes on weekends now, no students ________ go out of school without the headteacher’s permission.

Mike, your bedroom is in a mess. —Sorry, mum. I’ll ___ my things at once.

Do you really think I can achieve my goal — Absolutely .___ you give up halfway .

In the Olympic Games all athletes should play fair ________ the rules, but some often take drugs to accomplish their aims

____ more information I needed, butmy computer broke down