The lawyer was going through the documents(文件)____ immigration(移民)laws.

It’s really nice of you to spend so much time ________ me around the city.

How he _______ get out of the prison ______a mystery.

It’s _______ in winter in Harbin and I often go out to _______．

．After a day’s hard work ,Henry went to the nearby shop to___________ himself to a strawberry ice cream.