—These days he has stayed up late into night in order to get good marks in the following

问题补充：

—These days, he has stayed up late into night in order to get good marks in the following monthly test.

---It’s no that he seems tired and asleep in class every day.

A. wonder

B. problem

C. doubt

D. question

答案：

(答案→)A. wonder

B. problem

C. doubt

D. question

解析：考查句型：It’s no wonder that难怪怎么样，句意：难怪他看起来很累每天在课上睡觉。故选A。