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THE X-RAY _____IN 1895. A. SAID TO HAVE BEEN DISCO...
THE X-RAY _____IN 1895. A. SAID TO HAVE BEEN DISCOVERED B. IS SAI...
File thứ 2: anhkhoi12_1311201715
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28. The X-ray _____in 1895.
A. said to have been discovered
B. is said to have been discovered
C. is said to be discovered
D. said to discover
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28.
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File thứ 2: anhkhoi12_1311201715