Question

填空. Whose plants are these? They’re ___________ (grandfather’s plants).

Whose desk is this? It’s ___________ .
Whose books are these? They’re ___________ .

Answer 1

Whose plants are these? They’re ____his_______
Whose desk is this? It’s ___mine / yours / his / hers / theirs____ .
Whose books are these? They’re ___mine / yours / his / hers / theirs____ .

Answer 2

Tom's (desk)
Jack's (books)
人称可以换，括号里最好去掉，简洁一点