一What will happen to the children if Jim and Mary    ?一I don’t know but I think it’s a really terrible thing. 

When chatting with her on the mobile phone, the battery _     dead suddenly.

 Chinese students are good at taking exams and you can’t imagine what they are willing to        to succeed.

He will come to understand your efforts sooner or later. It’s just a ________of time.

Hard work and lack of sleep have _____ her beauty and youth in recent years.