Mary often does some translation work to earn extra money, which______half of her income. (潍坊市)

My life will be _____better than it is now.

With April 18’s railway speedup, highway and air transport will have to compete with _____ service for passengers. [ ]

y after the book Uncle Tom’sCabin________, the Civil War of America________

There is a chess match between a Korean player and AlphaGo(阿尔法).—It’s very amazing. Playing _____ chess is usually ________ one-to-one game.