2012年9月2日,在苏黎世飞往北京的航班上,两名中国乘客因椅背调整问题爆发肢体冲突,迫使航班返航;9月7日,在塞班飞往上海的航班上,又见中国乘客在飞机上打架。上述事件折射出( )
-What’s _____matter with you? -I have _____ toothache.
To our _____,the boy made no mistakes in the exam this time.
-_____ you _____ your drawing? -Not yet. It will be done in a few minutes.
The teacher told us the earth ________ around the sun.
He’s been in China for two years. And he’s used to _______ in China.