1.A heavy flood caused the bridge to ____ ; now, no one can cross the river without boats.2.Susan has been crying a lot since her sister died a year ago; it seems that she could never ____from the heavy loss.3.It's sometimes considered bad manners to ____ on the table while eating, so please be careful not to do so.4.After crying for some time, she looked at her face ____ in the mirror, only to find she was such a sad and plain-looking girl.5.I had to hold tightly the handrails (扶手) along the hall to keep myself from losing my balance on the ____floor.6. The man phoned the police and later went to the police station to look at photos to____ the robbers.7. The imperial examination system, which started in the Sui Dynasty, was ____in 1905.8. Many smokers choose to ____the fact that smoking is harmful to health and refuse to stop smoking.9. He no longer had a(n) ____ for further education because he thought the costs were too high.10. Although she often seemed quite cold and strict, her smiling eyes____ her true nature.