问题
选择题
I suppose that when I come back in two year’s time all these old houses will ____ down．
A．have pulled
B．be pulling
C．have been pulled
D．be pulled
答案
答案：C
考查时态，句意是：我想当我两年以后回来时，所有这些旧房子将会被推倒。用将来完成时，并用被动语态。选C。