The building of the new subway lines in the city has been ______due to lack of e

游客2025-05-06 16

问题 The building of the new subway lines in the city has been ______due to lack of enough in- vestment.

选项 A、held up
B、held on
C、held out
D、held back

答案 A

解析

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Inthispart,youarerequiredtowriteacompositionentitledOrsBuilding