用方框中所给单词或词组的适当形式填空，每个词只能用一次。

two，south，open，easy，with

Guangzhou is in the ____ part of China。
They will go to Shanghai ____ their parents。
____ your door first and it’s not difficult for you。
My father has lots of friends，they can get together very____。
Monday is the ____ day of the week。