Choose the correct preposition Various people were involved collecting evidence at the crime scene. He specialises DNA analysis. The technician removed DNA the hair sample. The murder case was solved record time. The day ended an arrest of a suspect.
Задание

Choose the correct preposition

  1. Various people were involved
    [in|to] collecting evidence at the crime scene.
  2. He specialises
    [at|in] DNA analysis.
  3. The technician removed DNA
    [of|from] the hair sample.
  4. The murder case was solved
    [in|at] record time.
  5. The day ended
    [at|with] an arrest of a suspect.