完形填空(每小题2分，共20分)
　　Many students like ________ very much．But _______ Monday to Friday，they ________ go to school．So on Saturday and Sunday they ________ at home and watch TV from morning to night．They don’t ________ it’s bad for their eyes(眼睛)．
　　________ school the children only do ________ minutes of sports or never do any sports．The teachers must know it isn’t good for ________ health．
　　We ________ think of ways(方法) to keep healthy．We must do enough(足够的) sports every day．And we ________ watch TV and read in right ways．

A．watch TV B．watch the TV C．watching TV D．watching the TV

A．on B．and C．from D．to

A．may B．should C．must D．can

A．stay B．live C．sit D．leave

A．know B．get C．see D．take

A．On B．By C．For D．At

A．little B．a little C．few D．a few

A．them B．they C．their D．theirs

A．often B．usually C．always D．never

A．must B．should C．can D．may