Mr.White said that he couldn't play football with us because he had a lot of work( )A done B do C doing D to do 为什么选D,说一个原因

问题描述:

Mr.White said that he couldn't play football with us because he had a lot of work( )
A done B do C doing D to do 为什么选D,说一个原因

不定式放在名词(a lot of work)后面作定语,且表主动(he去做),所以用主动to do

动词不定式做定语。

have sth to do 表示有事要干,固定短语.