________ you row a boat at the age of 10?  No, but now I ________.
#75228
A
Can;can
B
Can;could
C
Could ;can
D
Could;could
推荐题目
We ______ the difficulty together, but why didn't you tell me?
#63504
A
should face
B
might face
C
could have faced
D
must have faced
--- My son is _____ to be seen. Where has he gone? --- I think he _____ in the building. 
#62906
A
nowhere; must be hiding
B
nowhere; must be hidden himself
C
anywhere; hides
D
everywhere; hides himself