We _______basketball on the playground w
问题:
We _______ basketball on the playground when it _______ to rain. [ ]
A. played, began
B. were playing, began
C. played, was beginning
D. were playing, was beginning
We _______ basketball on the playground when it _______ to rain. [ ]
A. played, began
B. were playing, began
C. played, was beginning
D. were playing, was beginning