spend The chief executive officer was unwilling to spend his time on _____ a detailed advertisement presentation.A.preparationB.preparedC.preparingD.to prepare答案居然选C,但是不是spend in doing sth,和spend on

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spend The chief executive officer was unwilling to spend his time on _____ a detailed advertisement presentation.A.preparationB.preparedC.preparingD.to prepare答案居然选C,但是不是spend in doing sth,和spend on

spend The chief executive officer was unwilling to spend his time on _____ a detailed advertisement presentation.A.preparationB.preparedC.preparingD.to prepare答案居然选C,但是不是spend in doing sth,和spend on
spend
The chief executive officer was unwilling to spend his time on _____ a detailed advertisement presentation.
A.preparation
B.prepared
C.preparing
D.to prepare
答案居然选C,但是不是spend in doing sth,和spend on

spend The chief executive officer was unwilling to spend his time on _____ a detailed advertisement presentation.A.preparationB.preparedC.preparingD.to prepare答案居然选C,但是不是spend in doing sth,和spend on
恕我直言,你学得太教条了,spend in doing sth,和spend on sth是没错,但是也还有其它形式的用法:spend some time on doing sth,意思是花时间做某事,总的来说,spend是那种后面只能跟动名词或名词的动词,所以肯定不选B和D,如果选A,变成:preparation a detailed advertisement presentation.完全不合语法,由题意可知on后面要接一个动名词短语,表示做某事,只能选C.