the new dictionaries are very useful, they ____ well and ____ already.

the new dictionaries are very useful, they ____ well and ____ already.

A sell,have been sold out

B Sold,had sold out

C.sell, sell out

D.are sold ,have been sold out

请问选哪个 为什么 谢谢

选A

sell这个词可以用主动代表被动

D

ARE SOLD

因为主语是词典，词典只能被卖。