In the following questions, a sentence/part of the sentence is printed in bold. Below are given alternatives to the bold sentence/part of the sentence at (1), (2) and (3) which may improve the sentence. In case no improvement is needed, your answer is (4).
We could not help admire his inventive genius.
-
could not help to
-
No improvement
-
could not but
-
could not help but
D.
could not help but