Ex 7. Choose the letter A, B, C or D to indicate the underlined part that needs correction in each of the following sentences. 1. If you do not understand what were written in the book, you could ask Mr. Pike. A B C D 2. Humans can even die if they will drink contaminated water. A B C D 3. Contaminated water can cause of many types of diarrheal diseases, including cholera. A B C D 4. One of the things all of us can do to protect and improve our environment is recycle. A B C D 5. Water pollute in the lake has made the fish die. A B C D 6. By the time the rescue team had arrived, they’d drifted at sea for three days. A B C D 7. Search teams were unable to reach some areas because of roads were blocked by lots of debris. A B C D 8. Dozens of people were reported to be still trap in the rubble of a hotel in Palu City. A B C D 9. Could you meet us at the airport tomorrow afternoon? Our flight will land at 4 o’clock. A B C D 10. If I am you, I would choose another country to visit in this summer holiday. A B C D