The students are busy ______ the examination.

admin2013-01-03  36

问题 The students are busy ______ the examination.

选项 A、preparing for
B、preparing
C、to prepare
D、to prepare for

答案A

解析 固定短语。be busy doing sth.意为“忙于做某事”。
转载请注明原文地址:https://jikaoti.com/ti/yNiYFFFM
0

最新回复(0)