No matter how much you’ve learned and how high a standard of education you have had, you must _______ the people heart and soul.
| A.serve | B.serve for | 
| C.serve to | D.serve on | 
He spoke for quite a long time, but he threw no _________ on themain point.
| A.excuse | B.doubt | 
| C.detail | D.light | 
I have many friends, some _________ are businessmen.
| A.of them | B.from which | 
| C.of who | D.of whom | 
_________ its low cost, the appeal of iron as a building material layin its strength, its resistance to fire, and its potential to span vastareas.
| A.Other than | B.Apart from | 
| C.Except for | D.Rather than | 
Your story has little the facts.
| A.resemblances to | B.resemblances in | 
| C.resemblance to | D.resemblance in | 
The problem will _________ unsettled until the director comes backfrom abroad.
| A.prove | B.remain | 
| C.maintain | D.continue |