Correct the following sentences.

1.    Have you packed your luggages?
2.    Switzerland is known for its beautiful sceneries.
3.    He gave me an advice.
4.    Have you got any breads?
5.    I have an important work to do.
6.    What an awful weather!
7.    She is one of the best writers that has ever lived.
8.    You are not the first man that have ever been deceived by appearances.
9.    One of his good traits are modesty.
10.    Treasure Island is one of the best pirate stories that was ever written.
11.    All failed except he.
12.    This is one of the best novels that was published this year.
13.    He is one of the brightest boys that has passed through our school.
14.    You and me are invited to tea this morning.
15.    One of the greatest judges that has ever lived laid this down as law.

Answers

1.    Have you packed your luggage? (The noun luggage does not have a plural form.)
2.    Switzerland is known for its beautiful scenery. (The noun scenery does not have a plural form.)
3.    He gave me some advice. OR He gave me a piece of advice. (The noun advice is uncountable in English and as such it cannot be used with the articles a/an.)
4.    Have you got any loaves of bread?
5.    I have some important work to do. OR I have an important piece of work to do. (The noun work is uncountable in English and cannot be used with articles a/an.)
6.    What awful weather! (Weather is uncountable and cannot be used with the articles a/an.)
7.    She is one of the best writers that have ever lived. (Here the subject of the verb is writers and not one.)
8.    You are not the first man that has ever been deceived by appearances. (Here the subject (man) is singular and therefore we use a singular verb.)
9.    One of his many good traits is modesty. (The subject is one and not traits.)
10.    Treasure Island is one of the best pirate stories that were ever written. (Here the subject is stories and not one.)
11.    All failed except him. (A pronoun used as the object of a verb or a preposition should be in the objective case.)
12.    This is one of the best novels that were published this year. (The subject is novels and not one.)
13.    He is one of the brightest boys that have passed through our school. (Here the subject is boys and not one.)
14.    You and I are invited to tea this morning. (A pronoun used as the subject of a verb should be in the nominative case.)
15.    One of the greatest judges that have ever lived laid this down as law. (Here the antecedent of that is judges and not one.)