It is no use _________ to persuade him ________ smoking because he has been addicted to it since he wasyoung.
The director asked me to finish this task by Sunday.How can I ____to?
The letter Mary had looked forward to ____her last night and she was very excited.
The news shocked the whole nation ____a strong earthquake hit Yushu on Apr.14, 2010.
You ____be tired—you have worked only for ten minutes.
—Tom lost his job last week.—___he is wandering in the street these days.