The boy is very clever.He can work out difficult problems.(合并为一句)
It is very clever the boy work out difficult problems.
She has finished her schoolwork.(改为完成句子)
She her schoolwork.
What time did you arrive at the the railway station last night? (改为完成句子)
What time did you the railway station last night?
each player,the Olympics,to show their sills,give,to the world,a chance
(奥林匹克运动会给每﹣一位运动员向世界展示技能的机会.)
Cathy has an egg for breakfast every day.(对画线部分提问)
Cathy have for breakfast every day?