From the words lettered A to D, choose the word or group of words that best completes the sentence.
It was very clever of the students...the problem so quickly.
A
to have solved
B
having solved
C
to have been solving
D
having been solving
Verified Correct Answer: A.
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #23656)