Use the word given in capitals to form a word that fits each space. 1) I' m fond of . (SHOP)
2) This jacket is too I can't afford it. (EXPENSE)
3) GUM is one of the most well known Russian stores. (DEPART)
4) My sister never buys -hand clothes. (TWO)
как можно быстрее.​

1) I'm fond of shopping.
To form the word that fits the space, we need to add the suffix "-ing" to the word "shop". This changes the word from a noun to a verb and expresses the action of shopping.

2) This jacket is too expensive, I can't afford it.
To form the word that fits the space, we need to add the prefix "ex-" to the word "pense". This changes the word from a noun to an adjective and expresses the idea of being costly or requiring a lot of money.

3) GUM is one of the most well-known Russian stores.
To form the word that fits the space, we need to remove the suffix "-art" from the word "depart", leaving us with the word "dep". This word does not fit the given space.

4) My sister never buys second-hand clothes.
To form the word that fits the space, we need to remove the suffix "-o" from the word "two", leaving us with the word "tw". This word does not fit the given space.

Therefore, the correct answers are:
1) shopping
2) expensive
3) depart (no change needed)
4) second-hand