The carpet where he _____was warm and comfortable, so he slept soundly.

A good teacher should encourage his students to ____ the knowledge by themselves instead of just copying and memorizing what the teacher said in class.

 Faced with the severe employment situation, many graduates are _____going to work in the rural area.

－Did you tell Julia about the result?       －Oh, no, I forgot. I ________ her now.

At the______ of the century, Shanghai is developing at a rapid speed.