UFOS ARE STRANGE ____OBJECTS. A. PLAYING B. FLYING C. DOING D. LEAR...

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

6. UFOs are strange ____objects.

A. playing B. flying C. doing D. learning