Thehotelporter________anybodywhowasn’twearingacollarandtie

Our classroom is a little untidy. Please the desks and chairs.

Some of the drivers were ______ by the police becauseof their good behavior in the traffic accident.

Scientists say it may be five or six years ________ it is possible to test this medicine on human patients.[ ]

Did you go to Kunming on vacation — No, but it’s a good place _____ I often dream of going.