Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.

5. Viet Nam Airlines regrets informing the passengers that flight VN 251 to Ha Noi is postponeddue tobad weather.

A. informing               B. is postponed           C. due to                     D. bad weather

6. Before taking the exam, the students requiredto remove all the items from their desks.

A. taking                     B. required                  C. to remove               D. their

7. She mustn'tgo to work because she hasn't fully recovered from her illness.

A. mustn’t                   B. go                           C. hasn’t fully recovered        D. because

8. I will take a train whichleaveson 8 o’clock every morning.

A. will take                 B. which                      C. leaves                      D. on