The new dictionaries are very useful.They ____well and ____a

A.
1.当sell,read, write, wash, clean, cook, burn, draw, cut, wear等词与well, easily, quickly 等副词连用时,常用主动表被动.
如：The cloth washes well.
The poem reads smoothly.
The book sells well. 等等.
2.当sell的主语与它构成主动关系（也就是说主语是该动作的发出者）时用主动：I sell this book to him.我把这本书卖给了他)
当sell的主语与它构成被动关系（也就是说主语是该动作的承受者）时用被动：This book is sold by me.这本书被我卖了.原形sell 过去时sold 过去分词sold.

a
sell well 表示卖得好，是一种状态，主动形式。
havebeensoldout 已售完 目前现状
参考

D. 被动语态。