After graduation from college,he began to wander from city to city,____ a suitable job.
–Do you know his number?-No, I even have quite enough trouble______ my own.
The bus stopped at the station, _____ several people and drove off.
The _____ you study, the _____ you’ll be in it.
You’d better go there by train. The train ticket is _____ the plane ticket.
She brought with her three friends, none of _____ I had ever met before.