Jane is one of the students in the class ______ have ever been to China.
It was in the street_________ I met Mary yesterday .
In my opinion, the view Jennifer the other day is well worth discussing at this meeting.
Only when the final examination was coming ______ he had quite a lot to do.
Practising Chinese kong fu can not only ______ one’s strength, but also develop one’s character.
Scientists are convinced ___ the positive effect of laughter ____ physical and mental health.