G

game (n) 

A: Only I lack a level of the game.

B: I already spent all the levels.

garden (n) 

A: Your garden is beautiful.

B: Thanks.

golden (adj) 

A:If it had gold it would be rich.

golf (n) 

A: The golf is very boring.

B: Yes!!

grass (n)

A: I broke a glass.

guitar (n) 

A:A friend touches very well the guitar.

gym (n)

A: Today I went to the gym with a friend.