1. That student will fail () he studies harder.

    unless

    as long as

2. Some people will be influenced by TV () they watch it critically.

    unless

    as long as

3. I'll do the new perfume commercial () I have time to shoot it.

    unless

    as long as

4. We'll put an advert in the local paper () we have enough money.

    unless

    provided that

5. The company will cancel the commercial () they increase their earnings.

    unless

    as long as