Choose
the correct form of the pronoun.
1. Grace's ferns, (who, which) are quite large
in size, need to be watered every day.
2. Someone said that (their, his/her) wallet
was stolen.
3. The boys and girls in the play discussed
(their, his/her) role(s).
4. Every actor and actress on the set knew (their,
his/her) mark.
