Although they are full brothers,they have very little in ___

Although they are full brothers,they have very little in _______.
general
common
ordinary
average
Please try to get in ________ with them.
touch
along
share
common
A friend _________ is a friend indeed.
need in
in use
in need
in turn
We _________ our public face and emotional distance with convenience friends.
endure
maintain
pretend
serve
From the smokers’ point of ______,the tobacco tax is too high.
view
experience
sight
action