My most devoted friend, Professor Yang, _______ often go hiking when he lived in the mountain that was covered with forest.
--Do you mind if I smoke here? --____________. A. Sure. Go ahead B. No. Go ahead C. Yes. Please
Even on holidays, he preferred doing something________
I hope there are enough glasses for each guest to have___________.
Nobody believes him ____________ what he said.
It’s clear__________ that a hard working student has___________ a great interest in science.