Directions: In these questions, a part of the sentence is given in bold. Below are given alternatives to the bold 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:

She has slept for eight hours last night. 

• 1
  had slept
• 2
  has been sleeping
• 3
  slept
• 4
  No improvement