根据汉语,用单词的适当形式填空

题目

根据汉语,用单词的适当形式填空
1. All the students are surely____(要求) to hand in their homework
2.( )They were ___busy___with each other___the time.
A. so, talking ;that they forgot B. too, talking; to forget
C. so, to talk ;that they forgot D.too , to talk; to forget

答案

1.asked 此句用被动语态.所有学生被要求交作业.
2.A be busy doing sth忙于做某事；so...that...如此...以至....他们忙于互相交谈,以致忘了时间.