The _______ toys are in the next room.  children's   childrens   childrens's   children

To determine the correct form of the word to complete the sentence "The _______ toys are in the next room," we must consider possessive forms and plural usage:

1. Children's: This is the possessive form, indicating that the toys belong to the children. This option fits well in the sentence.

2. Childrens: This is not a correct form in English; the plural of child is children.

3. Childrens's: This is incorrect as it improperly combines plural and possessive forms.

4. Children: This is simply the plural form and does not indicate possession.

Final Answer

The correct word to complete the sentence is children's. Thus, the complete sentence reads: "The children's toys are in the next room."