The sign “NO PARKING” on the pavement means you ________ leave your car here.
The boys,________had played the whole day long, were tired.
Yuan Long ping is ______ university professor.He likes playing _____ violin.
―People should stop using their cars and start using public transport.―______. The roads are too crowded as it is.
―Do you know where David is? I couldn’t find him anywhere.―Well. He ______ have gone far — his coat’s still here.
As a physics teacher, Mr. Chen devoted himself to teaching and researching, which earned him a good ______ in his field.