MANY REPORTS IN NEWSPAPERS TALKED ABOUT THE ___OF UFOS. A. APPEAR...

12. - BÀI SOẠN TRAC NGHIEM-TA9- UNIT 10
BÀI SOẠN TRAC NGHIEM-TA9- UNIT 10

12. Many reports in newspapers talked about the ___of UFOs.

A. appear B. appearance C. appeared D. appearing