把他所有的空余时间花在看电视上用英语怎么说

问题描述:

把他所有的空余时间花在看电视上用英语怎么说

To spend all his free time watching TV

He spends all his spare time in watching TV
用法是spend time in doing

He spends all his spare time (in) watching TV
sb.spend time (in) doing做某事花费某人多长时间
in one's spare/free time在某人的业余时间、空闲时间