[-C36] -Tom often surfs on the Intermet late into night,playing computer games.-No ____ he

问题描述:

[-C36] -Tom often surfs on the Intermet late into night,playing computer games.-No ____ he
fell far behind the others in his class.
A.doubt
B.idea
C.wonder
D.problem
为什么选C不选A?

选A的话就太肯定了,A是表示毫无疑问,语气非常肯定,而C则是表示不奇怪,说明是有根据,但不绝对.