问题补充:
The tickets for the Imax film are selling so well. Try to buy one before all the tickets .
A. will be sold
B. will be sold out
C. are sold
D. are sold out
答案:
A. will be sold
B. will be sold out
C. are sold
(答案→)D. are sold out
解析:sell表示卖的意思,为不及物动词,sell out表示卖完的意思,相当于及物动词,可以有被动语态,故选D