AS WE __________DOWN THE HILL, A STRANGE OBJECT __________ IN THE...

30. - DE THI ANH VAN
Tiếng Anh DE THI ANH VAN
30. As we __________down the hill, a strange object __________ in the sky. A.were driving/appeared B.drove/was appearing C.drove/appeared D.were driving/was appearingIII/ Choose the underlined word or phrase ( A, B, C or D ) that needs correcting.