When Stan was five years old, his father died in a traffic accident, leaving his mother to _____ three children alone.

One sunny day, Alice sat ______a river with her sister.

Hi! You look unhappy today._______ 一Nothing serious.

How was your report, Sam — Not bad, but I need to do better in ______.

The old man said the accident careless driving,so a lot of money be paid by the driver[ ]