22. (2016·南宁)He left school and began work _________ twelve.
A. at the age of B. at the beginning of
C. at the top of D. at the bottom of
23. I really enjoy the soup. It delicious.
A. stays B. feels C. tastes D. sounds
24. As a student, you must arrive at school ________.
A. on time B. in time C. for the first time D. from time to time
