The workers are busy ______ the house.A、to buildB、builtC、buildingCbe busy doi

游客2025-07-09 56

问题 The workers are busy ______ the house.

选项 A、to build
B、built
C、building

答案 C

解析 be busy doing sth．固定搭配，忙于做某事。

转载请注明原文地址:https://tihaiku.com/zcyy/4154016.html

相关试题推荐

随机试题

最新回复(0)