重写句子：NotuntilhecrossedthelineandfeltthetapesnapagainsthischestdidJohnsonknowhehadwontherace.(loosesentence)
Johnson did not know he had won the race until he crossed the line and felt the tape snap against his chest.
重写句子：Ihavecheckedmydocumentsseveraltimes.Istillcan’findttheproblem.(compoundsentence)
I have checked my documents several times, but I still can’t find the problem.
重写句子：Theteacherreturnedthehomework.Theteachernoticedtheerror.(complexsentence)
The teacher returned the homework when(after) she noticed the error.
重写句子：Whenwearerelievedofworkingpressuresoftheoffice,wecanenjoyhappinessandrelaxationathome.(modifyingphrase)
Relieved of working pressures of the office, we can enjoy happiness and relaxation at home.
重写句子：Alanpassedthetest.Alanhadstudiedhard.Alanhadunderstoodthematerial.(complexsentence)
Alan passed the test because Alan had studied hard and understood the material.
重写句子：Fossilfuelsarenon-renewable.Weneedtofindalternativeenergysources.(compoundsentence)
Fossil fuels are non-renewable, so we need to find alternative energy sources.
