— Did Alice enjoy the concert held in Grand Theater yesterday? — Yes, she did. She _____ such an excellent concert for a long time.

The American Foundation for the Blind has been trying to figure out how to make public libraries __________to blind readers .

It was ________ Benazir Bhutto, former Pakistan prime minister, was leaving the rally(集会) that the suicide bomb happened, ________ the world felt sorry.

____ students should be given more free time is suggested by many experts and welcomed by kids in school. 

 _____ by the clear waters, this forest provides visitors with a wonderful chance to see some endangered native birds in the wild.