Fill in the blanks with the expressions given below. Change the form where necessary .
be confined to stumble over show off
on probation as for rely on
1.You'll be_____ a period of three months before you get this job . What do you say?
2.There is not much point in____when mobiles are so common now .
3.____salary, I leave it to you to decide after you have considered my abilities and experience.
4. Certainly, no all-round knowledge can be acquired merely by glancing this way and that and___hearsay .
5.The hunger for liberty is strong, and it is not___ any time or place .
6. It is found that people's voices often get higher when they lie, and they are more likely to___ words.