–Look! A blind man is in the middle of the street. It’s too dangerous.–Let’s help him go         the street

Though he is _____ at home ,but he doesn’t feel ______

  --How was your May Day holiday? --Just so so , we drove to Hangzhou and tried to find a place for parking , but they were all _______.

The American boy is only four years old. He can swim            the lake.

 —    do you go to visit your grandparents?  — Once a week.