1.I have to work late tomorrow ,so I can not join your party.
->............................................................................
2.Unless you study harder, you will not pass the final exam.
->If you...................................................................
3.I think you should stop making noise in class.
->If i ...............................................
4.I do not speak english well enough to work for a foreign company.
->If i.............................................................
5.I have not got any money so we can not go on the trip .
If we.......................................................................
6.She is not a millionaire so she can not buy a house in Tokyo.
->If she............................................