He was known to have been hanging about and was not expected to pass the test. ______, his failure came as no wonder to his parents.

(2013·江西，24)What a terrible experience！________，you're safe now—that's the main thing.

—What do you think of the speech?     —The speaker said ___ nothing worth ___

Drunk driving used to occur _____, but now it is under control．

It is good for elderly people to be _________ involved in community service.