WHILE I _________ TV LAST NIGHT, A MOUSE RAN ACROSS THE FLOOR. A....

TRAC NGHIEM PHAN THI TRONG TIENG ANH TONG HOP WITH KEYS TRAC NGHIEM TENSES TONG HOP

30. While I _________ TV last night, a mouse ran across the floor. A. Watch B. watched C. was watching D. am watching