1. Andrew returned to the room and _________ Mary of their decision.

　　A) invited B) informed

　　C) persuaded D) required

　　2. The __________ success in the laboratory was a stimulus for further research.

　　A) initial B) elementary

　　C) essential D) internal

　　3. Most of the _____ passengers were quickly removed from the aircraft.

　　A) harmed B) damaged

　　C) wounded D) injured

　　4. A book had been stolen, but the teacher said that he was sure Jack was__________ .

　　A) doubtless B) innocent

　　C) exceptional D) unable

　　5. He went to the station to __________ about the times of trains to Guangzhou.

　　A) consult B) refer

　　C) inquire D) require

　　6. I must ________ on your giving me a straightforward answer.

　　A) determine B) devote

　　C) insist D) invite

　　7. It was my father’s courage and devotion that ________ his men with determination.

　　A) inspected B) inspired

　　C) lightened D) insisted

　　8. There are jobs more dangerous than truck driving; ________ training lions.

　　A) as an instance B) for an instance

　　C) as instance D) for instance

　　9. Before he started to operate the new machine, he read the _____carefully so that he made no mistakes.

　　A) informations B) indications

　　C) instructions D) publications

　　10. My house is ________ against fire and theft.

　　A) assured B) insured

　　C) prevented D) prepared

　　11. A person who quickly learns and understands has good ________ .

　　A) influence B) cleverness

　　C) intelligence D) brightness

　　12. They escaped to Paris with the ________ of becoming painters.

　　A) intention B) attention

　　C) imagination D) consideration

　　13. I turned off the radio so that it didn’t ________ with my roommates.

　　A) interfere B) interrupt

　　C) disturb D) dismiss

　　14. The trees were planted beside the road at ________ of 50 feet.

　　A) lengths B) widths

　　C) intervals D) heights

　　15. In terms of political opinions, they are totally different. However, they are ____ friends in life.

　　A) relative B) intimate

　　C) dependent D) imitate

　　16. Before the _______ of gunpowder (火药) , men fought with bows and arrows.

　　A) exposure B) invitation

　　C)discovery D) invention

　　17.1 won’t get _______in the quarrel between Tom and Jack.

　　A) involved B) included

　　C) consisted D) contained

　　18. Sherlock Holmes ____ many cases by following the footprints left at the scene of the crime.

　　A) invested B) investigated

　　C) suspected D) suggested

　　19. He ________ himself from the outside world by living in the mountains.

　　A) divided B) prevented

　　C) isolated D) related

　　2. The great ______ today is whether there will be war or peace.

　　A) problem B) difference

　　C) issue D) tissue