Short review exercises on the use of who, which and that.
Start by using the presentation to explain the different use cases of each.
The worksheet is split into three rounds:
Round 1 - Who or Which (didn't include that as I feel it'd be too easy)
Round 2 - Guess that answer by examining the relative pronoun
Round 3 - Translation (might be too difficult, so can be done as a class)
My 3rd students are quite shy, so round 2 and 3 were done in pairs.
I gave five minutes for each round, before showing them the answers on the presentation.