Matching Pairs Body clock vocabularyOnline version Activity to practise vocabulary related to reading about our body clock. by Raquel Rodríguez 1 absenteeism 2 disruption 3 doubter 4 undeniable 5 therefore 6 carry out 7 advocate 8 delay unbeliever skipping class, playing hooky/ playing truant (slang) as a result interruption,disturbance promote, recommend postpone indisputable, irrefutable perform, conduct.