【C6】A．timeB．caseC．fearD．consequence

【C20】A．factB．caseC．resultD．contrast

【C6】A．timeB．placeC．sightD．way

【C9】A．hearB．bearC．fearD．tear

【C16】A．GivenB．In caseC．Only ifD．Providing

【C9】A．In any caseB．In caseC．In case ofD．In this case

The policemen are investigating the murder______.A．eventB．caseC．incidentD．accident