1).(1 分)
Making the thread run through a hole in the center of the needle (able) _(1)_ the design of the first practical sewing-machine.
(1).enabled
2).(1 分)
The two twins look very much alike in their appearance,but (different) _(1)_ widely in their tastes.
(1).differ
3).(1 分)
Cocktail is a mixed alcohol drink,often (serve) _(1)_ before a Western-style meal.
(1).served
4).(1 分)
Now all the machinery in the factory (be) _(1)_ made in China.
(1).were
5).(1 分)
In Chinese culture,the ability (preserve) _(1)_ self-denial is marked as a sign of virtue in modesty.
(1).preserving
6).(1 分)
To satisfy our own (curious) _(1)_,we traveled to Baltimore.
(1).curiosity
7).(1 分)
(Drop) _(1)_ out of school once or even twice,the boy's cultural level was low.
(1).Dropped
8).(1 分)
Both of these lamps (burn) _(1)_ out,and we need some new electric lamps
(1).burned
9).(1 分)
Our society offers those who can play basketball well an education that might (not obtain) _(1)_ by the poor.
(1).unobtained
10).(1 分)
Since the rain seems (stop) _(1)_ ,you can close your umbrella.
(1).to stop