______the bones under the sand,the scientists concluded that they came from the dinosaurs about 65 million years ago.
The analysis shows that plastics, particularly those that __________ fast, are contributing to the climate change.
--- Is this company ______ your elder sister once worked in? ---- Yes, it is.
The committee is discussing the problem right now. It will _____ have been solved by the end of next week.
Mr Wang’s commitment leaves him held in deep ____ by his students and also wins their respect.
Not until_______ home ______he had had his wallet stolen.