The students are to hand in the exercises before class.A. hoped 　B. suggestedC. agreedD.

问题补充：

The students are to hand in the exercises before class.

A. hoped

B. suggested

C. agreed

D. expected

答案：

A. hoped

B. suggested

C. agreed

(答案→)D. expected

解析：句意：孩子们被期望上课之前交作业。A hope可以作及物动词和不及物动词，但在英语的口语语法和笔语语法中一般不使用被动语态。Bsuggest doing sth建议做某事Cagree to do sth同意做某事，无被动。Dbe expected to do sth被期望做某事。