Do not open this before christmas. On no ..........open this until Christmas.

I´d love to travel the World if I didn´t have to pay off the mortgage. Were ................................................ to pay off my mortgage I´d love to travel the World

If you happen to succeed I ´d be very impressed.Were ... I´d be very impressed.

As well as being rich, he is also highly influential. Not ..... he is also influential.

They had no idea they were being watched. Little ..... they were being watched.

You must not tell anybody. Under ........................ tell anybody.

I will never do that again. Never.................... that .

Unless things don´t go as planned there´ll be no problem. As.... there´ll be no problem

If I didn´t have a fast car, I would have been late. If it .......................... I would have been late.

If it hadn´t been raining the roads wouldn´t have been slippery. But .... the roads wouldn´t have been slippery.

He might have got the job if he had been willing to attend an interview. He might have got the job but ..........attend an interview

If you applied now, there´s a good chance you´d get the job.Were ...................., there´s a good chance you´d get the job