ask my dearest teachers

I have no answers to the questions that I don't know how to do , so I need your help,teachers, thank you vey much.
Fill in the missing words
1. As the date of shipment stipulated in the mentioned L/C is July 15, which leaves only 5 days_______ validity, which is too short ____ us to arrange shipment.
2. Owing to there ____no direct steamer to your port this month, you are ____ to amend the L/C allowing_____.

[Mister Micawber]

1. The first answer is 'of'. Try to do the rest yourself.

.

too short for us to arrange shipment

owing to there is no direct steamer to your port this month, you are required to ament the L/C allowing transhipment
transhipment means the goods need to change vessel