400-600-1123
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答案：
A
B. Had began时
态错误；第二个had应该改为has。
C. the beginning of the universe was的表达wordy；was应该改为is；that has expanded将原句中并列的句子改为从句，改变了原句意思。
D. 缺少that；the beginning of the universe was的表达wordy；to have been表达不正确，而且wordy；that is expanding将原句中并列的句子改为从句，改变了原句意思。
E. 缺少that；and前的句子主谓不完整。 
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