Kitty spends a lot of time after-school activities but Linda spends little time it.A. doi

问题补充：

Kitty spends a lot of time after-school activities, but Linda spends little time it.

A. doing, in

B. to do, in

C. doing, on

D. to do, on

答案：

A. doing, in

B. to do, in

(答案→)C. doing, on

D. to do, on

解析：句意：基蒂在业余活动上花费大量的时间，但是琳达几乎没有在上面花费时间。spend +时间+（in）doing sth ,花费时间做某事，spend +时间+on sth在…上面花时间，故选C