1、Henrt is in charge of the office____Mr.Smith____(be)away.(if,before.since,while)
2、I haven't seen him____he____(move)to the other side of the town.(until.before,becouse,while)
3、She likes everything to be in place___she____(start)to work,(until,before,because,while)
4、The thieves ran away____they____(catch)sight of the police.(until,before,since,when)
5、They decided to go back home____their money____(run)out。(if,before,because,while)
快!!!