1. I haven't seen that man before. 2. Although Bill took a taxi, he still arrived late for the concert. 3. The vet examined my brother's pet dog last week. 4. " Why didn't you report the incident to the police "?

1 I haven't seen that man before
=> It's
2 Although Bill took a taxi,he still arrived late for the concert
=> Despite
3  The vet examined my brother's pet dog last week
=> My brother's pet
4 "why didn't you report the incident to the police ?'  the officer asked the frightened witness
=>  the officer wanted to know