There is a real possibility that these animals could be frightened，__________a sudden loud noise.

Exercise is _____ as any other to lose unwanted weight. [ ]

A positive attitude，________with willingness to seek appropriate help and exercising solid study habits，will do much to determine how well you do in your studies.

iter conveyed a positive attitude through his works.______, his readers are motivated and are themselves becoming a source of motivation for others.

The number of people present at the meeting ______ about one thousand, a large number of whom ______ experts from abroad.