— But for the bird flu ( 禽流感 ) in Vietnam in the summer of 2004，I you to go to Vietnam for sightseeing.
— Really？ What a pity！
A. have taken
B. had taken
C. should have taken
D. would have taken
网友回答
A. have taken
B. had taken
C. should have taken
(答案→)D. would have taken
解析：考查虚拟语气。句意：要不是因为2004年夏天越南的禽流感，我本来是要带你去越南观光的。——真的吗？太可惜了。“would+have+done”表示对过去事情的假设，意思是“本来会做”。故选D。