Even if they are on sale, these refrigerators are equal in price to, if not more expensive than, _____ at the other store.
It was so cold that he had the fire ___________ all night long.
--- Let’s have a rest. --- Not now. I don’t want to stop _________ now.
--- You did very well at the meeting, Black. --- Well, I regret ___________ that to the boss.
--- What do you suppose made her worried?--- _________ a new cell phone.
One third of our school _________ covered by trees, while the majority of our students ________ girls.