--Hi,Mary.Would you like to go to the concert this evening?----Hi,Mary.Would you like to go to the concert this evening?----Sorry,Tom._____ tomorrow's lessons,I have no time to go out with you.A,Not preparing.B,Not having prepared.C ,Not to prepare.D,Being not prepared.我感觉是C,可我们老师说是B,请网上大大们解惑,
问题描述：
--Hi,Mary.Would you like to go to the concert this evening?
----Hi,Mary.Would you like to go to the concert this evening?
----Sorry,Tom._____ tomorrow's lessons,I have no time to go out with you.
A,Not preparing.B,Not having prepared.C ,Not to prepare.D,Being not prepared.我感觉是C,可我们老师说是B,请网上大大们解惑,
答
动词做主语ing形式,后面是现在完成时,你们老师正解（初二表示高中题真简单