be aware of the tenses. If it's about the past, we have to use either PAST SIMPLE or PAST PERFECT. Sometimes, the "had" have to be changed to have to be correct in terms of grammar

REVIEW 1 I. LISTENING: 1. Listen to a radio program in which a presenter is talking to a forester about moths. Choose the correct answer to the questions: 1. The caterpillars of the oaks processionary moth are harmful to trees because… a. They spread disease b. They eat leaves c. They weaken the wood 2. The caterpillars of the oak processionary moth… a. cannot harm human health b.