34. When he knocked at the door, my mother was busy ____ sup


34. When he knocked at the door, my mother was busy ____ supper.
A．preparing for B．in preparing
C．to prepare for D．to prepare
＊紫ff花＊ 1年前 已收到1个回答 举报
赞

任贤齐小雪 幼苗

共回答了17个问题采纳率：82.4% 举报

B

“be busy (in)doing something” 忙于干谋士，要求接动词的-ing形式。准备的直接宾语是“supper”,故其前面不用介词for。

1年前

7
可能相似的问题

你能帮帮他们吗

精彩回答

Copyright © 2024 YULUCN.COM - 雨露学习互助 - 17 q. 0.061 s. - webmaster@yulucn.com