This company was ______ of using misleading advertisements in its promotion of the weight-loss pills

—Have you ever been to Singapore?—Yes, I ________  there three times in 2009 alone.

He came to my class every week, but his attitude ________ he was not really interested in the subject. 

It suddenly_____ to me that I could use a computer to do the job.

(2014·北京四中期中)The children________very well last night and the audience were attracted by their play.