—What _____ you _____ at nine o'clock la
题型：选择题
问题：
—What _____ you _____ at nine o'clock last night, Michael?
—I was watching TV.[ ]
A. was; doing
B. were; doing
C. is; doing
D. did; do
题型：选择题
—What _____ you _____ at nine o'clock last night, Michael?
—I was watching TV.[ ]
A. was; doing
B. were; doing
C. is; doing
D. did; do
