新概念2.3-please send me a card

how many cards did the writer send?

postcards always spoil my holidays.
last summer , I went to italy.

i visited museums and sat in public garders.

a frendly waiter taught me a few words of italian .Then

he lent me a book.

i read a few lines but i did not understand a word.

every day i thought about postcards.

my holiday passed quickly. but i did not send a card to my friends.

on the last day , i made a big decision.

I got up early and bought 37 cards,

I spent a whole day in my room , but i did not write a single card