Drop one, add one (4 letters)

[Milly Robertson]

Boat

 

[Nicole Oakes]

Right back at you Madge. Just about bedtime for me again.

Toad

 

[Milly Robertson]

Road

 

[Steve North]

dare

 

[Nicole Oakes]

Earn

 

[Steve North]

warn

 

[Milly Robertson]

Warm

 

[Shirley Martin]

mark

 

[Milly Robertson]

Park

 

[Nicole Oakes]

Rank

 

[Milly Robertson]

Sank