Iffy verbs

Sentences with if clauses can pose special problems. While these sentences may be about real possibilities, they may also present unlikely, imaginary or impossible situations. As a result, their verbs often take an unusual form. If you think you are up to the challenge, try your hand at the questions below. Choose the best answer in each case.

1. If he was riding his bike without a helmet, he Placeholder for the answer himself seriously.
2. If you give me the signal, I Placeholder for the answer to second base.
3. I Placeholder for the answer chess with you if you play backgammon with me.
4. If Madeleine made a promise, she Placeholder for the answer it.
5. Jerry would pass his courses if he Placeholder for the answer his homework.
6. If you Placeholder for the answer on time, you would not have missed the train.