Have the students been busy------ a fashion show these days?A.ORGANIZEINGB.TO ORGANIZE为什么不选B呢?

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Havethestudentsbeenbusy------afashionshowthesedays?A.ORGANIZEINGB.TOORGANIZE为什么不选B呢?Havethestudentsb

Have the students been busy------ a fashion show these days?A.ORGANIZEINGB.TO ORGANIZE为什么不选B呢?
Have the students been busy------ a fashion show these days?
A.ORGANIZEING
B.TO ORGANIZE
为什么不选B呢?

Have the students been busy------ a fashion show these days?A.ORGANIZEINGB.TO ORGANIZE为什么不选B呢?
be busy doing 忙于做某事
是个固定搭配 本题考点