As is known to us, theory is based on practice and servers practice.A. by chance B. in turn C. in return C. by turn
23. Some extra office equipment, including two desks and two computers, __________ to be ordered next week.
22. He’s succeeded in many fields but his wife is an ordinary woman, ___________?
21. Whether you believe what he said _________ what he does in the future.
20. His parents were teachers in that school, _______ lost their lives in order to save their students in the earthquake.
19. __________ a chance, we will visit Edinburgh a second time.