Solution to the quiz

Q1. (2)away will not be used
Q2. (3) to enter will replace entering
Q3. (2) contains will replace contain
Q4. (3)was will replace are
Q5. (4)No error
Q6. (1)have seen will replace saw
Q7. (1)The will be used before Tea
Q8. (1) the will be used before poor
Q9. (2) hearing will replace hear
Q10. (3)at will replace by