Find one error in each of the following sentences (A, B, C or D)

It is much easier for a foreigner to become an American citizen if he has a close relative whoever is already an American. 

The package must be wrapped carefully before it is post.

They hardly never go to the beach because of their thickness, do they?

Either the doctor or the nurses takes care of changing the patients’ bandages.

My mother still spends 14 hours a day do the housework.

The better you are at English, more chance you have to get a job with international organizations.

My father used to giving me somegood advice whenever I had a problem.

The price of gold depend son several factor, including supply and demand in relation to the value of the dollar.

Do you think two hours are too long to wait for someone?

I can’t stand make noise in class. Would you please do something?

I am very interesting in problems caused by pollution.

Today was such beautiful day that I couldn’t bring myself to complete all my chores.

George hasn’t completed the assignment yet, and Maria hasn’t too.

I often look into new words in the dictionary whenever I don’t know their meanings.

The first nation park in the world, calling Yellowstone Park, was established in 1872.

One of the most popular holiday in the U.S is Thanksgiving, which is celebrated in November.