1 . On the morning of June 17, Xu passed away in Beijing at the age of 100. The respectable translator enjoyed a life worth __________ (remember). (所给词的适当形式填空)

2 . He regretted ________(miss) his daughter’s school play, as it was a special moment he couldn't get back. (所给词的适当形式填空)

3 . Bishop says since robots have great difficulty ________ (understand) humor, she feels like it gives her better job safety as a comedy performer. （所给词的适当形式填空）

4 . Nowadays, many parents stop__________their kids by rewarding them with material stuff for the concern that it may lead to opposite effects. (motivate)（所给词的适当形式填空）

5 . The key to ________(fulfill) your dream one day is to go to great lengths to work hard and stick to your dream in spite of adversity. （所给词的适当形式填空）