Cleverness is not always a ________ of high grades in exams. You’d better learn knowledge carefully and practice more.
Little Jim is going to spend his holiday in Paris, _____ lives his uncle.
The person we referred to(提及)____ us a report tomorrow.
The research is so designed that once _____ nothing can be done to change it.
He wrote a lot of novels, none of _____ translated into a foreign language.
----- “Is there _____ here?” ------ “No, Bob and Tim have asked for leave.”