______ in thought,he almost ran into the car in front of him[ ]

Nanjing is about 300 km ________________ Yancheng.

I’m disappointed with the officer elected in our town —I am too, but there’s no point _____ about it

_____ he is, he seldom shows his precious coins to others. [ ]

________had the worker who was badly injured in that accident stopped breathing and died________ doctors arrived.