Solve the tasks given in the image.

1. Text 3, question 1: The correct answer is a. Biology. 2. Text 3, question 2: Maria studies the function and structure of the human body. 3. Text 3, question 3: Maria has been studying for two hours. 4. Text 3, question 4: The missing words are:"job","working","freelancer","salary". 5. Text 3, question 5: Fill in the verbs in brackets to the past perfect or the past perfect continuous: (Answers for each sentence provided).