This is an _______ that will not be easily forgotten.

The alarm clock didn't ring this morning. I （） it last night. A: did forgotten to wind B: may have forgotten winding C: ought to have forgotten to wind D: must have forgotten to wind

47. His words just reminded me of what I would otherwise have forgotten. A: What he said just interrupted my thought. B: His words simply didn’t fit my desire. C: I forgot something. D: I would have forgotten something but for his words.

2. The first lesson ______ I learned will never be forgotten.

The performance is so (wonder) ____that I've never forgotten.

The _____ committed by the troops when they occupied the capital will never be forgotten.

Before long, he ________ all about the matter. A: will have forgotten B: will forget C: will have been forgotten D: will be forgetting

This is an _______ that will not be easily forgotten. A: impact B: academic C: insult D: alternative

This is an _______ that will not be easily forgotten. A: interval B: academic C: insult D: alternative

( ) that she had forgotten to lock the door.