1. Knowing CPR is necessary for being a paramedic. 2. I take public transportation only if it is convenient. 3. I eat raw fish only if I am in a Japanese restaurant. 4. I buy foreign products only if...

1. Knowing CPR is necessary for being a paramedic.

2. I take public transportation only if it is convenient.

3. I eat raw fish only if I am in a Japanese restaurant.

4. I buy foreign products only if domestic products are not available.

5. I ride my bicycle only if it is not raining.

6. You may become a U.S. senator only if you are at least thirty years old and have been a citizen for nine years.