In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.
Passage:

The most common act of forgetfulness, I suppose(1)........... in the matter of posting letters. So common is it that I am always (2).......... to trust a departing visitor to post an important (3)........ So before handing over the letter I make him (4).......... to post it immediately. As for myself, anyone (5)............... asks meto posta letter is a poor judge of my character.