-Is your sister at home, Dennis? -No, sh
题型:选择题
问题:
-Is your sister at home, Dennis?
-No, she isn't. I think she _ _ the piano in Anna's living room. [ ]
A. can play
B. could be playing
C. had played
D. plays
-Is your sister at home, Dennis?
-No, she isn't. I think she _ _ the piano in Anna's living room. [ ]
A. can play
B. could be playing
C. had played
D. plays