Mr Smith, looking ______, started to work out a problem.
I was on the highway when this car went past fol. Lowed by a police car. They ______ at least 150 kilometers an hour.
I ______ have been more than six years old when the accident happened.
He _____ have completed his work; otherwise, he wouldn’t be enjoying himself by the seaside.
John, look at the time. ______ you play the piano at such a late hour ?
Tom, you _____ leave all you clothes on the floor like this !