Mark the letter A, B, C,D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.The firefighters had just left the building. There
Mark the letter A, B, C,D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
The firefighters had just left the building. There was a loud explosion.
A. Only after there had been a loud explosion did the firefighters leave the building.
B. No sooner had the firefighters left the building than there was a loud explosion.
C. Not until there had been a loud explosion did the firefighters leave the building.
D. Had it not been for a loud explosion, the firefighters would not have left the building.