I'm sorry you ______ so long, but it' ll still be some time before Jim gets back.
There is often disagreement on ____ is the better student.James or Celina?
____ out how to put our furniture or we'll have to wait for another week to move in.
In his youth,Ma Yun finally attended Hangzhou Teacher's Institute he failed the entrance exam twice.
____carefully for a long time,the opening was a great success
–He ____ the Most Popular Teacher in his hometown,right?-Yes.ten years before he came to this school.