Directions: In the questions, a part of the sentence is given in Underline. Below are given alternatives to the Underline part at (A), (B) and (C) which may improve the sentence. Choose the correct alternative. In case no improvement is needed your answer is (D).

Q:

We have to know that we can achieve things slowly and gradually, not overnight. 

• 1
  had to know that
• 2
  must know that
• 3
  would know that
• 4
  No improvement