✔ 最佳答案
Assuming "HK Passport" means HKSAR passport, you are correct you do not need a study permit for a course less than 6 months in length. However, you are recommended to apply for one according to the Citizenship and Immigration Canada.
http://www.cic.gc.ca/english/study/study-who.asp
In accordance to the Immigration and Refugee Protection Act, you are obliged to answer all questions truthfully. Failure to do may result in jail time and fines.
1. You should show your letter of admission and explain to the officer you are in Canada to study English for the next 5 months.
2. You are permitted but must declare to the officer if you are carrying more than $10,000 CDN in negotiable instruments (i.e. cash, cheque, money order, etc) under the Proceeds of Crime (Money Laundering) and Terrorist Financing Act or you will risk seizure and fines. If you wish to get a bank draft, it's better to have it in CDN for faster processing.
3. It's best to obtain a letter just prior to your departure but there are no specific rules to its validity.4. You are taking an extended leave of absence from your job to study English. 5 months isn't too long as a year to two is quite common in Canada as well.
5. CIC's officers are also posted to the Consulate General of Canada in Hong Kong... if they deem it necessary, they will verify with your employer.
6. Provided you have a reasonable explanation, I don't see it to be an issue.
The Canada Border Services Agency has published a guide for visitors, available here:
http://www.cbsa-asfc.gc.ca/publications/pub/bsf5082-eng.html
If you encounter any difficulty in answering questions in English, you can ask for translation services.