Due to the unreasonable individual income ______, the gap between the rich and poor has become an outstanding issue.
The door opened and in_______.
The little boy sat_______ to his father and listened______ with great interest.
In the present _______, I wouldn’t advise you to sell your house.
The family settled in New York in 1970 and has lived there_______.
In New Zealand , people live in the houses with their doors ______ north.