"Take good care of yourself, my darling, not just for your own sake, but for mine also," wrote     1     unknown serviceman stationed in the Waziristan region.

The letter is one of the 717 that were never delivered by the ship, the SS Gairsoppa, which     2    (destroy) off the coast of Ireland by a German U-boat on February 16th, 1941. Of the 86 crew members     3     board, only one survived.

With a     4    ( hand) of the more complete letters displayed in an exhibition at the Postal Museum in London in 2018, the museum has been working on the more damaged letters intending     5    (expose ) wartime lives.

Two other letters are from a father to his children in Torquay,     6     the museum believes they may have escaped. The father wrote, “Mummy will send you back to Wycombe sooner or later. Meanwhile we all have to make the     7    (good) of things as they are: the war has upset most people's dreams and     8     (mode) of living including mine!”

“It feels somewhat mournful and appropriate to unite these letters on the     9    (eighty) anniversary of the ship's sinking,"   said conservator Jackie Coppen. "It is inevitable that while     10     (piece) the letters together I have come to form a close relationship with them.”