Question

they have already ridden the horse before, ____?

He’s already ridden the horse before ,______? A．is he B．isn’t he C．has he D．hasn’t he

Answer 1

D 本题是现在完成时态的反义疑问句，前句是肯定的意思，后半句用否定的结构，本题的助动词为has，故否定结构为hasn’t，故本题选D。