In mend/ mending/ to mend

1. in mend/mending/to mend
2.the last person leaving /left/ to leave 
3.join hands=......
4.is allowed going/to go/go
5.be willing to +.....
6.she isn't at work ,.......?
7.they are going to go to London  when they will  finish /have finished thier word
9.By the time you come there, he......(leave) for London