21．Nothing can take ；surely it forms valuable memory in our life.place of the lost pleasant time
A. the；／ B．the；a C.／；a D. a；the
22. , his rich experience was also the key to getting the well-paid job．his ability
A. Because of B. Instead of C. Free from D. Apart from
23. ---Could you ，sir? I really need the work to pay for my schooling. a personal interview for me
---Ok，I will try.
A. arrange B. design C. give D. operate
