Beforehe sprained his back, Morgan spends (A) much of(B) his leisure time engaged in (C) outdoor sports,particularly(D) hiking and canoeing. No error (E)
这道题考的是时态,选择A,改为过去式spent,但C选项spend后面不应该是on sth./ in doing sth.吗?有网上解释说是engaged in作定语,但还是不太明白,那请问这个定语修饰的是什么?求赐教!谢谢!