_____ did Dave go on vacation– He went to the mountains.

Various student clubs are set up in many senior high schools to urge students to ________ the opportunities to cultivate their good virtues and qualities.

1The headmaster with hisstudents HangzhouParadise Park if it tomorrow.

My parents told me ____ no circumstances should I open the door for a stranger when Iwas alone at home.[ ]

The government is now trying to provide _______ health benefits to all citizens in China．