heavy，   belong to，   miss ，   used to，    success， true，   become

（1）Sally is an honest girl． She always tells the 　 truth 　．

（2）The 　　writer has written many popular novels all his life．

（3）I 　　be a teacher but I am now a research scientist．

（4）The actress is 　　． Her family has called the police．

（5）It began to rain 　　when the train arrived．