When dealing with students, teachers are supposed to adopt ______ and caring approaches, as they are unique young individuals of different personalities.

The general at last got a chance to visit the village_____ he used to fight, he had been dreaming of for years.

Ascientist who can speak English is in closer touch with those of othercountries than ______ who doesn’t.

What ______ the doctors most was that they could not find the cause of the disease.

My uncle’s house in the downtown area is much smaller than ours，but it is twice________expensive.