Put a mark (') before the stressed syllable of each underlined word in the following sentences.
Your stories of what happened conflict with each other.
Rewrite the sentences in the passive voice form. People should stop experiments on animals.
Choose the best answer. Your passport ................It is invalid without your signature.
Circle the correct answer. I think you should /must/may eat less and take more exercise.
Rewrite the sentences in the passive voice form. We might find life on another planet.