V. Write a letter in English asking for amendments to the following letter of credit by checking it with the above - mentioned contract：
COMMERCIAL BANK OF TORONTO
Date： Sept.5， 1998
To： BEIJING IMP.EXP CORP.
Beijing， China
Advised through Bank of China， Beijing
No， BOC 98/09/05
DOCUMENTARY LETTER OF CREDIT
IRREVOCABLE
Dear Sirs，
You are authorized to draw on VANCOUVER TRADING CO. LTD.， Vancouver for a sum not exceeding CAN $ 24，000（SAY CANADIAN DOLLARS TWENTY THOUSAND ONLY） available by draft drawn on them at 60 day‘s sight accompanied by the following documents：
Full set of Clean on Board Bills of Lading made out to order and blank endorsed， marked "freight prepaid" dated not later than October 31，1998 and notify accountee.
Signed Commercial Invoice in quintuplicate.
Canadian Customs Invoice in quintuplicate.