Your firm has been kindly to us by your sister firm.
举一反三
- This offer is firm, subject to your reply _________ us before May 30.
- This offer is firm, subject to your reply reaching us before Oct.15.
- This offer is firm subject ____ your reply reaching us ______ the end of this month.
- The offer is firm ____ your reply reaching us before the end of this month.
- This offer is firm, subject ______ your ______ ______ us before or ______ noon time June 19th.