用适当的冠词填空（a,an,the)

用适当的冠词填空（a,an,the)
1.l saw ___ boy just now.___ boy looked like my old friend.
2.Exuse me.Where is ____ police station?
lt is poopsite ___ shopping mall.
3.____ earth is much bigger than ____ moon.
4.lt is cool to drive along ___ Shennan Road,________ longest and widest street in Shenzhen.
5.Cathy likes to study ___ math.He's good at __ science subjects.
6.Shenzhen,____ developing modern city,is in ___ south of China.
7.My father is ____ head of the organization,and he always tells me to be ___ useful person for the society.
8.Tom,it's time to have ___ lunch.Would you like to have ___ lunch with us today?
9.___Shenzhen today is much more beautiful than before.lt's ___Window　to　＿＿＿　world．
　10．＿＿＿　China　is　＿＿　developing　country,lt＇s　＿＿＿　largest　country　in　＿＿　Asia．