Due to the unreasonable individual income _______, the gap between the rich and poor has become an outstanding issue.
--- I didn’t invite him to the party but he came anyway and got completely drunk. --- _______ he hadn’t come! The party could have been a success.
--- How can I repair it? --- Well, look at the _________.
He _____ some safety measures at the meeting for the 2010 Shanghai Expo.
In the past few years, __________much improvement in the traffic.
They became friends again that day. Until then they ______to each other for nearly two years.