Mr. Richard hasn’t got any time to play golf these days, because he is ______ in the research of bird language.
Between our school and the Department Store______ a 12--storeyed building.
Although a sudden change can be a bad thing, it might often be _____ in the long run.
– How do you find your journey in New Zealand? -- Wonderful! The scenery there is beautiful _____ expression.
– You ought to see a doctor about that cough. -- I guess I should. I _____ it off for days.
He will surely finish the job on time _____ he is left to do it in his own way.