Question

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

Answer 1

A

试题分析：某些可和well，easily等副词连用的不及物动词，如read，write，wash，sell等，可以主动语态表示被动含义，第一空就是这种用法，意思是它们很畅销。由副词already（已经）可知第二空用完成时态，意思是它们已经被销售完。故选A。
点评：动词的主、被动语态由主语与谓语动词的关系决定，主语是动作的发出者用主动语态，是动作的接受在用被动语态；动词的时态由时间状语决定。