He spends all his spare time (in) watching TV
*** . 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
He spends all his spare time on the model plane.
Daniel spends all his spare time in front of the puter
Daniel's whole free time was spent in front of the puter.
Dannie spent all his spare time on puter.
1,the rest of room will be less
2,He think puters will be used by most of people
3,I hope your dream will e true
... while others would spend much time watching TV. 应该给出前半句才好翻译。
all his friends
they are all watching TV now
他们现在都在看电视
He watched TV yesterday evening