1.My happiest moment was ___ I met my favorite author in a b
1.My happiest moment was ___ I met my favorite author in a bookstore.
A.that B.when 选B为什么呢?
2.There ___ be any trouble in winning the first prize in the Winter Olympics in 2010 since you have got so well prepared.A.
A.mustn't B.shan't D.shouldn't 选B,为什么呢?