People read newspapers and magazines in order to keep themselves _____ of what is going on in the world outside.
18.Mary said she didn’t care anything about John, but her red face________.
17.—Is there any better way to help my son get rid of the habit of playing computer games? —To tell you the truth, it’s very hard. But we_______on this problem to improve the situation.
16.—Where is Lily, Lucy? I cannot find her anywhere. —She_________have been off long. I saw her clean the window just now.
15.While he has failed again and again, he never gives up in order to________his dream.
14.This doubt had been in my mind for some time, but the research still went on____some reasons.