上海—北京的航班,起飞后收到地面传来的爆炸物威胁信息,机组以下做法不正确的是

　Children are taught to ( ) certain regulations at school.

　You will receive our Sales Contact and please ( ) and return one copy to us for file .

　The evidence will ( ) my story.

　( ) five by two. The product is ten.

　The passenger who travels on an international flight should ( ) .

　Baby service is available on most airlines but should be arranged ( ) .

　A baby is defined by most airlines as a child ( ) .

　Chairman Hu Jingtao’s ( ) in United States is Obama.

　The observation group traveled from South Africa to Oxford ( ) eight other African countries.

　Is there any ( ) flight that leaves on Sunday?