A. radioactivity B. on the other hand C. hey D. ahead A. air tank B. commit C. as long as D. unhappy A. reinforce B. build sb up C. gravy D. Mrs. A. go ahead B. inspire C. high D. report A. in fear of one's life B. sunlight C. pile D. themselves A. tell a lie B. journalist C. dweller D. film A. group B. prevent C. boredom D. get in touch with A. play B. majestic C. crowded D. as A. catch fire B. gossip C. happiness D. strange A. organise B. authoritarian C. all the time D. iceberg