题目内容
( )13. The boy spent lots of time__________ football,_________ he fell behind in his lessons.
A. to play; because B. to play; so
C. playing; because D. playing; so
D
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题目内容
( )13. The boy spent lots of time__________ football,_________ he fell behind in his lessons.
A. to play; because B. to play; so
C. playing; because D. playing; so
D