问题补充:
Mary is tired of learning because she is to do better than she can, both at school and at home.
A. thought
B. expected
C. hoped
D. helped
答案:
A. thought
(答案→)B. expected
C. hoped
D. helped
解析:考查被动语态。句意:玛丽疲于学习,因为她在家里和学校被期待着做的更好。因为hope sb. to do sth.不正确,也无此类被动语态。故选B。