DIRECTIONS: in the following question, a part of sentence is bold. Below are given alternatives to the bold part which may improve the sentence. Choose the correct alternative. In case no improvement is required, choose “No Improvement” option.
Not until did he receive her letter he fully realised her problem

Options

A. A) Not until he received her Jetter did he fully realise
B. B) Not until had he received her letter that he
C. C) Not until he had received her letter that he
D. D) No Improvement

Answer

A

Explanation

The structure of sentence should be :
Not until+ Subject+ `V_2` +Object+ did+ Subject+ `V_1` Not until he received her letter did he fully realise is the right usage.