- Do you know who the tomb of Emperor Qin and who the mobile phone? - No, but we may ask——青夏教育精英家教网—

题目内容

— Do you know who _____ the tomb of Emperor Qin and who _____ the mobile phone?
— No, but we may ask our teacher.

A. discovered; invented
B. was discovered; was invented
C. invented; discovered
D. was invented; was discovered

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