—Hello, I’d like to see Doctor Smith at 3 o’clock tomorrow afternoon. —Sorry, but he ________ a patient at that time.
It is very___that the factory will have to close because of the economic crisis
The joke of the speaker,___to cheer up the audience,was greeted with a cold silence
Your performance in the driving test didn’t reach the required standard;___,you failed
___by the growing interest in nature,more and more people enjoy ourdoor sports
Though the long-time___can not be predicted,the project has been approved by the committee