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题型：单选题题类：常考题难易度：普通

人教版（新课程标准）高中英语必修一Unit 5 Nelson Mandela-a modern hero同步练习1

Only after my friend came, __________________.

A、did the computer repair B、he repaired the computer C、was the computer repaired D、the computer was repaired

举一反三

Only when we realize how serious the environment is damaged, _______is usually ignored, ______ try our best to fight against it.

_______in her work that she didn't notice me come in.

Never before ________ our country ________ as strong as it is today．

Not until the end of the performance ________ the chance to take photos with the respectable actor.

______ you eat the correct foods ______ be able to keep fit and stay healthy.

Never again ______ political office after his 1928 defeat for the presidency.

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