问题
选择题
I suppose by the time I come back next year, all these old houses south of the Baoshehe River ________ down.
A．will have been pulled
B．will be pulling
C．will have pulled
D．will be pulled
答案
答案：A
考查时态.句意:我猜,到我明年回来时,所有Baoshehe河南岸的旧房子都得被拆掉.结合语境可知下文描述的是将来某时前完成的动作,故用将来完成时态.主语是动作对象,故用被动语态,选A.