The young man did nothing but ___ in the street like a spirit all day.

The little child ____go out alone at night, so he ____walk in the dark that night.

He often buys things in our shop. He is a customer to our shop. [ ]

I will travel to Shanghai this summer holiday.— _______.

– Who are the teenagers gathering atthe school gate— Well, if you _____ know, they are allmy visiting students.