Fill in the blanks with appropriate preposition.

I congratulate him ___ his success

Transform the following sentences as directed in the bracket:

Without Studying well you cannot be successful.

Transform the following sentences:

There is no rose but has a thorn. (Affirmative)

Fill in the gap using appropriate Article:

_______ rich are not always happy.

Answer the following questions.

Write the active voice of the sentence: I cannot be purchased by anybody.

Correct the following sentences (any five):

He has bought many furnitures.