Well thanks for ur reply leon. The reason that I asked is because I saw on their website the following:
Indications declared residence may be in question
The following list, while not exhaustive, includes indications that further inquiry into declared residence may be required. It is important to note that indications alone do not necessarily mean a case of residence not being met. Their weight and credibility vary and must be considered in conjunction with all information on file.
—Residence declaration
Applicant declares Non-Permanent Resident (NPR) time which cannot be confirmed through immigration documents, FOSS, or stamps in passport and NPR time is needed in order to meet the residence requirement. (CPC referral.)
Applicant cannot adequately or convincingly account for time spent within the past four years.
—Previous applications
Applicant had a previous application for citizenship that was refused on residence. (CPC referral.)
Applicant had a previous application for citizenship that was abandoned or withdrawn. (CPC referral.)
http://www.cic.gc.ca/english/resources/manuals/bulletins/ob022.asp