Resumptive-error classification: select all sentences that contain no doubled referent.
The jacket I bought fits well.✓الإجابة الصحيحة
The camera which I sold it was old.
The engineer who solved the fault stayed late.✓الإجابة الصحيحة
The guests who they arrived first waited outside.
الشرح
The jacket contact clause leaves an object gap after bought, and who alone supplies the subject of solved in the engineer sentence. The camera which I sold it is the closest false statement because it repeats the camera with it.