问题补充:
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
答案:
(答案→)A. sell; have been sold out
B. sold; had sold out
C. sell; sell out
D. are sold; have been sold out
解析:“动词+副词(well,easily,quickly等)”中的动词不必用被动式,这类动词有read,wash,sell,open,shut,clean,bum,pull,draw等。