Whentravelingaloneinthemountains,you’dbettertakea_______withyouincaseyougetlost.

Although the trffic is not busy, he likes to drive at a_______ speed.

He works in our university as a visiting _______, not as a formal faculty member.

Several loudspeakers are _______ from the ceiling and we can hear the speaker very clearly.

The_______workcontinuedformorethanaweekbuttherewasstillnosignofthemissingboy.