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1. You will get a certificate but you have to complete the course first. UNLESS
    You won’t get a certificate _____________________________ the course.

2. It wasn’t necessary for you to wait for me. I know how to get to your place. NEED
    You _______________________________ me. I know how to get to your place.

3. After a long and heated discussion, the staff managed to persuade the council not to shut down the youth centre. SUCCEEDED 

    After a long and heated discussion, the staff ________________________________ the council not to shut down the youth centre.

4. I was incredibly angry when my ex-boyfriend appeared at the party uninvited. UP
    I was incredibly angry when my ex-boyfriend ____________________________ uninvited.