Put the verbs in brackets into the past perfect or the past perfect continuous. 16. a: mum was really angry at me. b: i know. (clean) the house all morning when you stepped in with those muddy shoes. 17 a: did salty help you with the dinner party last night? b: no, (prepare) everything by the time she got home. 18 a: why was tracy so happy to see her uncle? b: (not/see) him for eight months. 19 a: was jenny upset that i called her so late? b: no, (not/go) to bed yet. 20 a: lisa was exhausted yesterday. b: i know. (study) for a history exam all day.