While in London, we paid a visit to the hospital founded ______ the nurse Florence Nightingale.

The policeman’s traffic directions made all the drivers quite .

The teachers ________ on the blackboard with chalk inthe future.

(2014·山西高三上学期诊断考试)Chengdu has focused on improving the surrounding countryside，________encouraging large­scale city expansion.

She started singing to the baby and was ____ with a smile.[ ]