Almost seven tons of amber__________ the Amber Room.A．was used to makeB．was used
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Almost seven tons of amber__________ the Amber Room.| A．was used to make | B．was used to making | | C．were used to make | D．were used to making |
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答案
| C |
解析
| 考查主谓一致。seven tons of amber七吨的琥珀，谓语动词用复数，be used to do sth.被用来做某事，故选C。 |
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