He occasionally gave a smart nod, as if in confirmation of some opinion, though he was not thinking of anything in particular. A. 待一会儿他就轻快地把头一点,好象是对某一个意见表示赞成似的,其实他心里头可并没。 B. 待一会儿他就轻快地把头一点,好象是对某一个意见表示赞成似的,其实他心里头可并没想什么特别的事儿。 C. 待一会儿他就轻快地把头一点,好象是肯定了某一个意见,其实他心里头可并没。 D. 待一会儿他就轻快地把头一点,好象是肯定了某一个意见,其实他心里头可并没想什么特别的事儿。