下列各句加横线字活用现象分类正确的一项是（ ）①既来之，则安之②填然鼓之③是使民养生丧死无憾也④树之以桑⑤与少乐乐⑥使人先表澭水⑦赤也为之小

The old woman is lonely (孤独的). I often hear her say to .

The car factory was built at was once some good farnland

Feudal landlords, and imperialists are in no way more _____ than wolves.

The boy isn’t _____ to dress himself.