题目：They _______ their homework when the teacher came in.
2024-11-13
They _______ their homework when the teacher came in.
A. Are doing
B. Did
C. Were doing
D. Will do
正确答案：C
试题解析：暂无
They _______ their homework when the teacher came in.
A. Are doing
B. Did
C. Were doing
D. Will do
正确答案：C
试题解析：暂无
