A．didB．builtC．triedD．conducted

The bridge ______ two years ago.A、was builtB、builtC、is built

A．usedB．offeredC．triedD．attempted

【C6】A．manneredB．builtC．dressedD．fed

回答（61）题 查看材料A.taughtB.believedC.triedD.allowed

A similar approach can be ______to innovation.A．usedB．appliedC．triedD．employed

He bought two books. _____she.A. So didB. So wasC. So does