Though he is in his late sixties, the well-known biologist begins each day ____ a sense of adventure and a sense of curiosity.
--How did you find your visit to Qingdao? ---___________________________ .
Tom raised his handsto say something, but he remained silent in the end.
For some time the expert __________ people of the health risks caused by passive smoking. He says he won't stop until all the smokers around him decide to quit smoking.
—_____ that he picked up French? —It was in 2010_____ he traveled in France.
Have you ever stopped _____ how our lie _____ if the world ran out of ol?