Silk（）by Chinese for thousands of year

1、Every year thousands of lives（）in road

Every year thousands of lives（）in road accidents because of careless driving.AloseBlostChave lostDare lost

2、（）an order for one thousand tons or mo

（）an order for one thousand tons or more we grant a special discount of 10%.AonBForCToDOn

3、By which of the following means is for

By which of the following means is force efficiently provided to vary the pitch of the blades on a modem controllable pitch propeller?（）AHydraulicBMechanicalCPneumaticDElectrical

4、By next year he（）in New York for five

By next year he（）in New York for five years.Ahas workedBhas been workingCworksDwill have worked

5、The silk thread found in the hair of a

The silk thread found in the hair of an Egyptian mummy suggests that .A Egyptians had probably travelled to China to buy silkB trade along t...

6、By the end of this year, I（）enough mon

By the end of this year, I（）enough money for a holidayAwill saveBwill be savingCwill have savedDwill be saved