We are busy ______ our lessons these days.A、prepareB、preparingC、to prepareBbe

游客2025-07-07 20

问题 We are busy ______ our lessons these days.

选项 A、prepare
B、preparing
C、to prepare

答案 B

解析 be busy doing忙于做某事。

转载请注明原文地址:https://tihaiku.com/zcyy/4151354.html

相关试题推荐

随机试题

最新回复(0)