40. She ___ at school since 1984. A) teach B) has been teaching C) taught D) was teaching E) have taught

The correct answer is B) has been teaching. Explanation: The phrase "since 1984" indicates that the action started in the past and continues until the present. The present perfect continuous tense (has been teaching) is used to describe an action that started in the past and is still ongoing. Correct Answer: B