1. What do the following words have in common?

STOCK

POCKET

SNORE

GROVEL

OBJECT

2. What do the following words have in common?

IN

OUT

RED

RUB

RUG

ARE

3. What do the following words have in common?

ROCK

SPREAD

ROLL

BUG

HINTS:

2. Each word can be preceded by the same two letters.

3. Each word can be preceded by the same three-letter word.

Answers:

1. The letter O in each word can be changed to A to make new words.

2. Each word can be preceded by the letters SH.

3. Each word can be preceded by BED to yield new words.