you been to the Great Wall– Perhaps not in my memory. _______, it might havebeen during my early childhood.

His best-known work that is ___ all praisecan be seen in the museum．

I’m afraid I’m not _____ to help with the show next week.

doesn’t like pop music, does she —_____ She is a fan of classical music

The accident that happened at an oilfield the southeast coast of the USA has caused great damage to the environment