It's only six o'clock now;little Tom should be up,though,because he________for nine hours.
A.has been sleeping |
B.had been sleeping |
C.has slept |
D.had slept |
推荐套卷
It's only six o'clock now;little Tom should be up,though,because he________for nine hours.
A.has been sleeping |
B.had been sleeping |
C.has slept |
D.had slept |