My sister studied hard at school when she was young, which contributes ________ her success in her career.

Although the film star has got a tight schedule these days, our boss is still _________ to have him invited to the party for the promotion of our new product.

______, I lost heart in English learning, but my teacher often said to me, “Keep on working hard; you’ll succeed _______.”

The shop assistant was fired as she was _________ of cheating customers．

——Doctor, what do you think about the operation on my mom?——Couldn’t be better．I’m sure she’ll recover ___________.