Thenewdictionariesareveryuseful.They
来源：国语帮 3.34W
问题详情：
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
【回答】
A
知识点：现在完成时及其被动式
题型：选择题
