In each example you will read a short sentence (or two). Then, a pronoun in the text is mentioned. Your task is to choose a referent which the mentioned pronoun refers to. You will be given two options in each case and one choice should seem much more likely to you than the other.
Example: sentence: i couldn't put the saucepan on the rack because it was too tall .pronoun: it. A) the saucepan B) the rack
Example solution: the saucepan
Example explanation: If the saucepan couldn't be put on the rack, it was probably bigger in size than the rack, so the pronoun "tall" refers to the saucepan.

Problem: sentence: Sid and Johnny explained their theory to Mark and Andrew but they couldn't understand them .pronoun: they. A) sid and johnny B) mark and andrew

Solution: mark and andrew