I DON’T BELIEVE ... THE EXISTENCE ... UFOS ...EARTH.A. IN/OF/ON B...

Tiếng Anh 1000-cau-trac-nghiem-tieng-Anh-on-thi-thpt-quoc-gia-2018

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362. I don’t believe ... the existence ... UFOs ...Earth.

A. in/of/on B. in/on/of C. of/in/on D. on/of/in