Fill in the gaps. Pay attention to the description of the words in brackets

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers.
   gazed      glanced      glimpsed      noticed      observing      peering      saw      staring      witnessed   
Yesterday I (look quickly) out of the window and (pay attention to something) a man (look in a scientific kind of way) a house opposite through a telescope. I thought I (see or perceive briefly of partially) a woman inside the house. Then I (perceive with the eyes) someone else (look closely, finding it hard to make things out) into the window of the same house. I (look steadily and intently, esp. with thought) at them wondering what they were doing. Suddenly the first man stopped (look fixedly) through his telescope. He went and hit the other one on the head with the telescope and I realized that I had (look as a crime or accident occurs) a crime.