Not until ____ settle the problem. [ ]

rtain Davel’stold you his business troubles ,it’s no secret that he owes a lot of money to the bank

Was it two years ago _____ they first met? [ ]

It is very kind ______ you to help me with my lessonsbecause it is very difficult ______me to learn them well.

Every year, quite a lot of farmers______ to big cities to find jobs.