--- ________ the class done most of the work? --- Yes, but the rest ___________ rather difficult.
24. The car ran into a crowd of middle school students, _______ to hospital immediately.
25. The sooner one _____ to the new working conditions, the better it will be _______ his working efficiency.
26. After having finished mopping the floor, he puts the mop back ______ it belonged.
27. I was so busy last year that I was almost mad. So I spent _______ I had with my family last month after I finished the project.
28. ______ man is known by _______ company he keeps.