An Englishman always brings ________ umbrella.
Mike _________ English, but now he is better at it than _________ in his class.
About _____ of the workers in my company ______ to work every day.
Generally speaking, there _______ be any survivors(幸存者) after such a long time. However, two young people were found _______. Life is super-nature!
Last month I traveled across the Sahara Desert by ______ camel with some locals.What ________ amazing experience!
The light bulb ______ by Edison in the middle of the 1780s.