I’m going to _____ advantage of this tour to explore the history of the castle.

Why isn’t Cathy here yet— She _________ to be picked up at thestation．

evening after dinner, if not______from work, I will spend some time walking my dog

―Could I smoke here―I’d prefer _______if you don’t smoke in front of thechildren

Nowhere else in the world, in my opinion, _______ more attractive scenery than in Mount Huangshan.