Wecannottrusthimanymorebecauseheoften________hisduty.
A、owesHe works in our university as a visiting _______, not as a formal faculty member.
Bothsugarandsaltcan______inwater.
Carelessnessmadehimfallinhisjob_______.
The _______ work continued for more than a week but there was still no sign of the missing boy.
Carelessness made him fall in his job _______.
