The environmentalists said wild goats’ __________ on the vast grasslands was a good indication of the better environment.

The system has been designed to give students quick and easy _________ to the digital resources of the library.

I arrive at nine o’clock, teach until twelve thirty and then have a meal; that is my morning       .

The police are offering a __________to anyone who can give information about the lost key.

For us,_____ to college means that we can walk out of the mountains．