簡單英文問題(a, an, the, in, on)

a, an, the

有a,e,i,o,u就用an
the就係指明戈件野or地方名
(a)ex.a dog,a monkey.
(an)ex. an apple ,an orange.
(the)ex.the Ocean Park,xxxx is in the xxx.

in=入面
on=上面
in用係時間or地方等
(in)ex.My handbook in my school bag.
(on)ex.Jason sleeping on the table.