重写句子：NotuntilhecrossedthelineandfeltthetapesnapagainsthischestdidJohnsonknowhehadwontherace.(loosesentence)

重写句子：When we are relieved of working pressures of the office, we can enjoy happiness and relaxation at home.(modifying phrase)

Ifyou_______inbehavinginthiswayyouwillbringyourselfnothingbuttrouble.

重写句子：Alan passed the test. Alan had studied hard. Alan had understood the material.(complex sentence)

重写句子：Fossil fuels are non-renewable. We need to find alternative energy sources. (compound sentence)